1 | /* Prototype JavaScript framework, version 1.3.1 |
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2 | * (c) 2005 Sam Stephenson <sam@conio.net> |
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3 | * |
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4 | * THIS FILE IS AUTOMATICALLY GENERATED. When sending patches, please diff |
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5 | * against the source tree, available from the Prototype darcs repository. |
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6 | * |
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7 | * Prototype is freely distributable under the terms of an MIT-style license. |
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8 | * |
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9 | * For details, see the Prototype web site: http://prototype.conio.net/ |
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10 | * |
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11 | /*--------------------------------------------------------------------------*/ |
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12 | |
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13 | var Prototype = { |
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14 | Version: '1.3.1', |
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15 | emptyFunction: function() {} |
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16 | } |
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17 | |
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18 | var Class = { |
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19 | create: function() { |
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20 | return function() { |
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21 | this.initialize.apply(this, arguments); |
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22 | } |
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23 | } |
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24 | } |
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25 | |
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26 | var Abstract = new Object(); |
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27 | |
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28 | Object.extend = function(destination, source) { |
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29 | for (property in source) { |
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30 | destination[property] = source[property]; |
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31 | } |
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32 | return destination; |
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33 | } |
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34 | |
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35 | Object.prototype.extend = function(object) { |
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36 | return Object.extend.apply(this, [this, object]); |
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37 | } |
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38 | |
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39 | Function.prototype.bind = function(object) { |
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40 | var __method = this; |
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41 | return function() { |
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42 | __method.apply(object, arguments); |
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43 | } |
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44 | } |
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45 | |
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46 | Function.prototype.bindAsEventListener = function(object) { |
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47 | var __method = this; |
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48 | return function(event) { |
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49 | __method.call(object, event || window.event); |
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50 | } |
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51 | } |
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52 | |
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53 | Number.prototype.toColorPart = function() { |
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54 | var digits = this.toString(16); |
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55 | if (this < 16) return '0' + digits; |
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56 | return digits; |
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57 | } |
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58 | |
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59 | var Try = { |
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60 | these: function() { |
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61 | var returnValue; |
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62 | |
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63 | for (var i = 0; i < arguments.length; i++) { |
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64 | var lambda = arguments[i]; |
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65 | try { |
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66 | returnValue = lambda(); |
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67 | break; |
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68 | } catch (e) {} |
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69 | } |
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70 | |
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71 | return returnValue; |
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72 | } |
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73 | } |
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74 | |
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75 | /*--------------------------------------------------------------------------*/ |
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76 | |
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77 | var PeriodicalExecuter = Class.create(); |
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78 | PeriodicalExecuter.prototype = { |
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79 | initialize: function(callback, frequency) { |
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80 | this.callback = callback; |
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81 | this.frequency = frequency; |
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82 | this.currentlyExecuting = false; |
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83 | |
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84 | this.registerCallback(); |
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85 | }, |
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86 | |
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87 | registerCallback: function() { |
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88 | setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); |
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89 | }, |
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90 | |
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91 | onTimerEvent: function() { |
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92 | if (!this.currentlyExecuting) { |
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93 | try { |
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94 | this.currentlyExecuting = true; |
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95 | this.callback(); |
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96 | } finally { |
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97 | this.currentlyExecuting = false; |
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98 | } |
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99 | } |
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100 | } |
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101 | } |
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102 | |
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103 | /*--------------------------------------------------------------------------*/ |
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104 | |
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105 | function $() { |
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106 | var elements = new Array(); |
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107 | |
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108 | for (var i = 0; i < arguments.length; i++) { |
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109 | var element = arguments[i]; |
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110 | if (typeof element == 'string') |
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111 | element = document.getElementById(element); |
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112 | |
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113 | if (arguments.length == 1) |
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114 | return element; |
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115 | |
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116 | elements.push(element); |
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117 | } |
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118 | |
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119 | return elements; |
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120 | } |
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121 | |
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122 | if (!Array.prototype.push) { |
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123 | Array.prototype.push = function() { |
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124 | var startLength = this.length; |
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125 | for (var i = 0; i < arguments.length; i++) |
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126 | this[startLength + i] = arguments[i]; |
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127 | return this.length; |
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128 | } |
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129 | } |
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130 | |
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131 | if (!Function.prototype.apply) { |
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132 | // Based on code from http://www.youngpup.net/ |
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133 | Function.prototype.apply = function(object, parameters) { |
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134 | var parameterStrings = new Array(); |
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135 | if (!object) object = window; |
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136 | if (!parameters) parameters = new Array(); |
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137 | |
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138 | for (var i = 0; i < parameters.length; i++) |
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139 | parameterStrings[i] = 'parameters[' + i + ']'; |
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140 | |
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141 | object.__apply__ = this; |
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142 | var result = eval('object.__apply__(' + |
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143 | parameterStrings.join(', ') + ')'); |
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144 | object.__apply__ = null; |
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145 | |
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146 | return result; |
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147 | } |
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148 | } |
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149 | |
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150 | String.prototype.extend({ |
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151 | stripTags: function() { |
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152 | return this.replace(/<\/?[^>]+>/gi, ''); |
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153 | }, |
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154 | |
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155 | escapeHTML: function() { |
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156 | var div = document.createElement('div'); |
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157 | var text = document.createTextNode(this); |
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158 | div.appendChild(text); |
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159 | return div.innerHTML; |
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160 | }, |
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161 | |
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162 | unescapeHTML: function() { |
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163 | var div = document.createElement('div'); |
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164 | div.innerHTML = this.stripTags(); |
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165 | return div.childNodes[0].nodeValue; |
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166 | } |
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167 | }); |
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168 | |
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169 | var Ajax = { |
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170 | getTransport: function() { |
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171 | return Try.these( |
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172 | function() {return new ActiveXObject('Msxml2.XMLHTTP')}, |
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173 | function() {return new ActiveXObject('Microsoft.XMLHTTP')}, |
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174 | function() {return new XMLHttpRequest()} |
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175 | ) || false; |
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176 | } |
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177 | } |
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178 | |
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179 | Ajax.Base = function() {}; |
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180 | Ajax.Base.prototype = { |
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181 | setOptions: function(options) { |
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182 | this.options = { |
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183 | method: 'post', |
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184 | asynchronous: true, |
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185 | parameters: '' |
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186 | }.extend(options || {}); |
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187 | }, |
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188 | |
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189 | responseIsSuccess: function() { |
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190 | return this.transport.status == undefined |
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191 | || this.transport.status == 0 |
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192 | || (this.transport.status >= 200 && this.transport.status < 300); |
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193 | }, |
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194 | |
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195 | responseIsFailure: function() { |
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196 | return !this.responseIsSuccess(); |
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197 | } |
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198 | } |
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199 | |
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200 | Ajax.Request = Class.create(); |
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201 | Ajax.Request.Events = |
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202 | ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete']; |
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203 | |
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204 | Ajax.Request.prototype = (new Ajax.Base()).extend({ |
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205 | initialize: function(url, options) { |
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206 | this.transport = Ajax.getTransport(); |
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207 | this.setOptions(options); |
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208 | this.request(url); |
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209 | }, |
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210 | |
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211 | request: function(url) { |
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212 | var parameters = this.options.parameters || ''; |
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213 | if (parameters.length > 0) parameters += '&_='; |
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214 | |
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215 | try { |
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216 | if (this.options.method == 'get') |
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217 | url += '?' + parameters; |
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218 | |
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219 | this.transport.open(this.options.method, url, |
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220 | this.options.asynchronous); |
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221 | |
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222 | if (this.options.asynchronous) { |
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223 | this.transport.onreadystatechange = this.onStateChange.bind(this); |
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224 | setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10); |
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225 | } |
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226 | |
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227 | this.setRequestHeaders(); |
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228 | |
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229 | var body = this.options.postBody ? this.options.postBody : parameters; |
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230 | this.transport.send(this.options.method == 'post' ? body : null); |
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231 | |
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232 | } catch (e) { |
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233 | } |
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234 | }, |
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235 | |
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236 | setRequestHeaders: function() { |
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237 | var requestHeaders = |
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238 | ['X-Requested-With', 'XMLHttpRequest', |
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239 | 'X-Prototype-Version', Prototype.Version]; |
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240 | |
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241 | if (this.options.method == 'post') { |
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242 | requestHeaders.push('Content-type', |
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243 | 'application/x-www-form-urlencoded'); |
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244 | |
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245 | /* Force "Connection: close" for Mozilla browsers to work around |
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246 | * a bug where XMLHttpReqeuest sends an incorrect Content-length |
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247 | * header. See Mozilla Bugzilla #246651. |
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248 | */ |
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249 | if (this.transport.overrideMimeType) |
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250 | requestHeaders.push('Connection', 'close'); |
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251 | } |
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252 | |
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253 | if (this.options.requestHeaders) |
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254 | requestHeaders.push.apply(requestHeaders, this.options.requestHeaders); |
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255 | |
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256 | for (var i = 0; i < requestHeaders.length; i += 2) |
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257 | this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]); |
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258 | }, |
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259 | |
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260 | onStateChange: function() { |
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261 | var readyState = this.transport.readyState; |
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262 | if (readyState != 1) |
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263 | this.respondToReadyState(this.transport.readyState); |
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264 | }, |
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265 | |
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266 | respondToReadyState: function(readyState) { |
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267 | var event = Ajax.Request.Events[readyState]; |
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268 | |
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269 | if (event == 'Complete') |
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270 | (this.options['on' + this.transport.status] |
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271 | || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')] |
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272 | || Prototype.emptyFunction)(this.transport); |
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273 | |
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274 | (this.options['on' + event] || Prototype.emptyFunction)(this.transport); |
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275 | |
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276 | /* Avoid memory leak in MSIE: clean up the oncomplete event handler */ |
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277 | if (event == 'Complete') |
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278 | this.transport.onreadystatechange = Prototype.emptyFunction; |
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279 | } |
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280 | }); |
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281 | |
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282 | Ajax.Updater = Class.create(); |
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283 | Ajax.Updater.ScriptFragment = '(?:<script.*?>)((\n|.)*?)(?:<\/script>)'; |
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284 | |
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285 | Ajax.Updater.prototype.extend(Ajax.Request.prototype).extend({ |
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286 | initialize: function(container, url, options) { |
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287 | this.containers = { |
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288 | success: container.success ? $(container.success) : $(container), |
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289 | failure: container.failure ? $(container.failure) : |
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290 | (container.success ? null : $(container)) |
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291 | } |
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292 | |
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293 | this.transport = Ajax.getTransport(); |
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294 | this.setOptions(options); |
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295 | |
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296 | var onComplete = this.options.onComplete || Prototype.emptyFunction; |
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297 | this.options.onComplete = (function() { |
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298 | this.updateContent(); |
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299 | onComplete(this.transport); |
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300 | }).bind(this); |
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301 | |
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302 | this.request(url); |
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303 | }, |
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304 | |
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305 | updateContent: function() { |
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306 | var receiver = this.responseIsSuccess() ? |
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307 | this.containers.success : this.containers.failure; |
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308 | |
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309 | var match = new RegExp(Ajax.Updater.ScriptFragment, 'img'); |
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310 | var response = this.transport.responseText.replace(match, ''); |
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311 | var scripts = this.transport.responseText.match(match); |
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312 | |
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313 | if (receiver) { |
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314 | if (this.options.insertion) { |
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315 | new this.options.insertion(receiver, response); |
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316 | } else { |
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317 | receiver.innerHTML = response; |
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318 | } |
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319 | } |
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320 | |
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321 | if (this.responseIsSuccess()) { |
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322 | if (this.onComplete) |
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323 | setTimeout((function() {this.onComplete( |
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324 | this.transport)}).bind(this), 10); |
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325 | } |
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326 | |
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327 | if (this.options.evalScripts && scripts) { |
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328 | match = new RegExp(Ajax.Updater.ScriptFragment, 'im'); |
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329 | setTimeout((function() { |
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330 | for (var i = 0; i < scripts.length; i++) |
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331 | eval(scripts[i].match(match)[1]); |
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332 | }).bind(this), 10); |
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333 | } |
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334 | } |
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335 | }); |
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336 | |
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337 | Ajax.PeriodicalUpdater = Class.create(); |
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338 | Ajax.PeriodicalUpdater.prototype = (new Ajax.Base()).extend({ |
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339 | initialize: function(container, url, options) { |
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340 | this.setOptions(options); |
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341 | this.onComplete = this.options.onComplete; |
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342 | |
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343 | this.frequency = (this.options.frequency || 2); |
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344 | this.decay = 1; |
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345 | |
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346 | this.updater = {}; |
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347 | this.container = container; |
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348 | this.url = url; |
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349 | |
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350 | this.start(); |
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351 | }, |
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352 | |
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353 | start: function() { |
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354 | this.options.onComplete = this.updateComplete.bind(this); |
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355 | this.onTimerEvent(); |
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356 | }, |
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357 | |
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358 | stop: function() { |
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359 | this.updater.onComplete = undefined; |
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360 | clearTimeout(this.timer); |
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361 | (this.onComplete || Ajax.emptyFunction).apply(this, arguments); |
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362 | }, |
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363 | |
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364 | updateComplete: function(request) { |
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365 | if (this.options.decay) { |
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366 | this.decay = (request.responseText == this.lastText ? |
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367 | this.decay * this.options.decay : 1); |
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368 | |
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369 | this.lastText = request.responseText; |
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370 | } |
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371 | this.timer = setTimeout(this.onTimerEvent.bind(this), |
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372 | this.decay * this.frequency * 1000); |
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373 | }, |
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374 | |
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375 | onTimerEvent: function() { |
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376 | this.updater = new Ajax.Updater(this.container, this.url, this.options); |
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377 | } |
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378 | }); |
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379 | |
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380 | document.getElementsByClassName = function(className) { |
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381 | var children = document.getElementsByTagName('*') || document.all; |
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382 | var elements = new Array(); |
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383 | |
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384 | for (var i = 0; i < children.length; i++) { |
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385 | var child = children[i]; |
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386 | var classNames = child.className.split(' '); |
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387 | for (var j = 0; j < classNames.length; j++) { |
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388 | if (classNames[j] == className) { |
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389 | elements.push(child); |
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390 | break; |
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391 | } |
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392 | } |
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393 | } |
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394 | |
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395 | return elements; |
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396 | } |
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397 | |
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398 | /*--------------------------------------------------------------------------*/ |
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399 | |
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400 | if (!window.Element) { |
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401 | var Element = new Object(); |
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402 | } |
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403 | |
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404 | Object.extend(Element, { |
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405 | toggle: function() { |
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406 | for (var i = 0; i < arguments.length; i++) { |
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407 | var element = $(arguments[i]); |
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408 | element.style.display = |
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409 | (element.style.display == 'none' ? '' : 'none'); |
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410 | } |
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411 | }, |
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412 | |
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413 | hide: function() { |
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414 | for (var i = 0; i < arguments.length; i++) { |
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415 | var element = $(arguments[i]); |
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416 | element.style.display = 'none'; |
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417 | } |
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418 | }, |
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419 | |
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420 | show: function() { |
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421 | for (var i = 0; i < arguments.length; i++) { |
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422 | var element = $(arguments[i]); |
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423 | element.style.display = ''; |
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424 | } |
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425 | }, |
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426 | |
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427 | remove: function(element) { |
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428 | element = $(element); |
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429 | element.parentNode.removeChild(element); |
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430 | }, |
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431 | |
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432 | getHeight: function(element) { |
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433 | element = $(element); |
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434 | return element.offsetHeight; |
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435 | }, |
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436 | |
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437 | hasClassName: function(element, className) { |
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438 | element = $(element); |
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439 | if (!element) |
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440 | return; |
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441 | var a = element.className.split(' '); |
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442 | for (var i = 0; i < a.length; i++) { |
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443 | if (a[i] == className) |
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444 | return true; |
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445 | } |
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446 | return false; |
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447 | }, |
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448 | |
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449 | addClassName: function(element, className) { |
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450 | element = $(element); |
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451 | Element.removeClassName(element, className); |
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452 | element.className += ' ' + className; |
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453 | }, |
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454 | |
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455 | removeClassName: function(element, className) { |
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456 | element = $(element); |
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457 | if (!element) |
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458 | return; |
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459 | var newClassName = ''; |
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460 | var a = element.className.split(' '); |
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461 | for (var i = 0; i < a.length; i++) { |
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462 | if (a[i] != className) { |
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463 | if (i > 0) |
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464 | newClassName += ' '; |
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465 | newClassName += a[i]; |
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466 | } |
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467 | } |
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468 | element.className = newClassName; |
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469 | }, |
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470 | |
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471 | // removes whitespace-only text node children |
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472 | cleanWhitespace: function(element) { |
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473 | var element = $(element); |
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474 | for (var i = 0; i < element.childNodes.length; i++) { |
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475 | var node = element.childNodes[i]; |
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476 | if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) |
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477 | Element.remove(node); |
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478 | } |
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479 | } |
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480 | }); |
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481 | |
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482 | var Toggle = new Object(); |
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483 | Toggle.display = Element.toggle; |
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484 | |
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485 | /*--------------------------------------------------------------------------*/ |
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486 | |
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487 | Abstract.Insertion = function(adjacency) { |
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488 | this.adjacency = adjacency; |
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489 | } |
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490 | |
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491 | Abstract.Insertion.prototype = { |
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492 | initialize: function(element, content) { |
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493 | this.element = $(element); |
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494 | this.content = content; |
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495 | |
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496 | if (this.adjacency && this.element.insertAdjacentHTML) { |
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497 | this.element.insertAdjacentHTML(this.adjacency, this.content); |
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498 | } else { |
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499 | this.range = this.element.ownerDocument.createRange(); |
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500 | if (this.initializeRange) this.initializeRange(); |
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501 | this.fragment = this.range.createContextualFragment(this.content); |
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502 | this.insertContent(); |
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503 | } |
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504 | } |
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505 | } |
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506 | |
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507 | var Insertion = new Object(); |
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508 | |
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509 | Insertion.Before = Class.create(); |
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510 | Insertion.Before.prototype = (new Abstract.Insertion('beforeBegin')).extend({ |
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511 | initializeRange: function() { |
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512 | this.range.setStartBefore(this.element); |
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513 | }, |
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514 | |
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515 | insertContent: function() { |
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516 | this.element.parentNode.insertBefore(this.fragment, this.element); |
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517 | } |
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518 | }); |
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519 | |
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520 | Insertion.Top = Class.create(); |
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521 | Insertion.Top.prototype = (new Abstract.Insertion('afterBegin')).extend({ |
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522 | initializeRange: function() { |
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523 | this.range.selectNodeContents(this.element); |
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524 | this.range.collapse(true); |
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525 | }, |
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526 | |
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527 | insertContent: function() { |
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528 | this.element.insertBefore(this.fragment, this.element.firstChild); |
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529 | } |
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530 | }); |
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531 | |
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532 | Insertion.Bottom = Class.create(); |
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533 | Insertion.Bottom.prototype = (new Abstract.Insertion('beforeEnd')).extend({ |
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534 | initializeRange: function() { |
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535 | this.range.selectNodeContents(this.element); |
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536 | this.range.collapse(this.element); |
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537 | }, |
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538 | |
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539 | insertContent: function() { |
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540 | this.element.appendChild(this.fragment); |
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541 | } |
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542 | }); |
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543 | |
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544 | Insertion.After = Class.create(); |
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545 | Insertion.After.prototype = (new Abstract.Insertion('afterEnd')).extend({ |
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546 | initializeRange: function() { |
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547 | this.range.setStartAfter(this.element); |
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548 | }, |
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549 | |
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550 | insertContent: function() { |
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551 | this.element.parentNode.insertBefore(this.fragment, |
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552 | this.element.nextSibling); |
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553 | } |
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554 | }); |
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555 | |
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556 | var Field = { |
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557 | clear: function() { |
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558 | for (var i = 0; i < arguments.length; i++) |
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559 | $(arguments[i]).value = ''; |
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560 | }, |
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561 | |
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562 | focus: function(element) { |
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563 | $(element).focus(); |
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564 | }, |
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565 | |
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566 | present: function() { |
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567 | for (var i = 0; i < arguments.length; i++) |
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568 | if ($(arguments[i]).value == '') return false; |
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569 | return true; |
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570 | }, |
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571 | |
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572 | select: function(element) { |
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573 | $(element).select(); |
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574 | }, |
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575 | |
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576 | activate: function(element) { |
---|
577 | $(element).focus(); |
---|
578 | $(element).select(); |
---|
579 | } |
---|
580 | } |
---|
581 | |
---|
582 | /*--------------------------------------------------------------------------*/ |
---|
583 | |
---|
584 | var Form = { |
---|
585 | serialize: function(form) { |
---|
586 | var elements = Form.getElements($(form)); |
---|
587 | var queryComponents = new Array(); |
---|
588 | |
---|
589 | for (var i = 0; i < elements.length; i++) { |
---|
590 | var queryComponent = Form.Element.serialize(elements[i]); |
---|
591 | if (queryComponent) |
---|
592 | queryComponents.push(queryComponent); |
---|
593 | } |
---|
594 | |
---|
595 | return queryComponents.join('&'); |
---|
596 | }, |
---|
597 | |
---|
598 | getElements: function(form) { |
---|
599 | var form = $(form); |
---|
600 | var elements = new Array(); |
---|
601 | |
---|
602 | for (tagName in Form.Element.Serializers) { |
---|
603 | var tagElements = form.getElementsByTagName(tagName); |
---|
604 | for (var j = 0; j < tagElements.length; j++) |
---|
605 | elements.push(tagElements[j]); |
---|
606 | } |
---|
607 | return elements; |
---|
608 | }, |
---|
609 | |
---|
610 | getInputs: function(form, typeName, name) { |
---|
611 | var form = $(form); |
---|
612 | var inputs = form.getElementsByTagName('input'); |
---|
613 | |
---|
614 | if (!typeName && !name) |
---|
615 | return inputs; |
---|
616 | |
---|
617 | var matchingInputs = new Array(); |
---|
618 | for (var i = 0; i < inputs.length; i++) { |
---|
619 | var input = inputs[i]; |
---|
620 | if ((typeName && input.type != typeName) || |
---|
621 | (name && input.name != name)) |
---|
622 | continue; |
---|
623 | matchingInputs.push(input); |
---|
624 | } |
---|
625 | |
---|
626 | return matchingInputs; |
---|
627 | }, |
---|
628 | |
---|
629 | disable: function(form) { |
---|
630 | var elements = Form.getElements(form); |
---|
631 | for (var i = 0; i < elements.length; i++) { |
---|
632 | var element = elements[i]; |
---|
633 | element.blur(); |
---|
634 | element.disabled = 'true'; |
---|
635 | } |
---|
636 | }, |
---|
637 | |
---|
638 | enable: function(form) { |
---|
639 | var elements = Form.getElements(form); |
---|
640 | for (var i = 0; i < elements.length; i++) { |
---|
641 | var element = elements[i]; |
---|
642 | element.disabled = ''; |
---|
643 | } |
---|
644 | }, |
---|
645 | |
---|
646 | focusFirstElement: function(form) { |
---|
647 | var form = $(form); |
---|
648 | var elements = Form.getElements(form); |
---|
649 | for (var i = 0; i < elements.length; i++) { |
---|
650 | var element = elements[i]; |
---|
651 | if (element.type != 'hidden' && !element.disabled) { |
---|
652 | Field.activate(element); |
---|
653 | break; |
---|
654 | } |
---|
655 | } |
---|
656 | }, |
---|
657 | |
---|
658 | reset: function(form) { |
---|
659 | $(form).reset(); |
---|
660 | } |
---|
661 | } |
---|
662 | |
---|
663 | Form.Element = { |
---|
664 | serialize: function(element) { |
---|
665 | var element = $(element); |
---|
666 | var method = element.tagName.toLowerCase(); |
---|
667 | var parameter = Form.Element.Serializers[method](element); |
---|
668 | |
---|
669 | if (parameter) |
---|
670 | return encodeURIComponent(parameter[0]) + '=' + |
---|
671 | encodeURIComponent(parameter[1]); |
---|
672 | }, |
---|
673 | |
---|
674 | getValue: function(element) { |
---|
675 | var element = $(element); |
---|
676 | var method = element.tagName.toLowerCase(); |
---|
677 | var parameter = Form.Element.Serializers[method](element); |
---|
678 | |
---|
679 | if (parameter) |
---|
680 | return parameter[1]; |
---|
681 | } |
---|
682 | } |
---|
683 | |
---|
684 | Form.Element.Serializers = { |
---|
685 | input: function(element) { |
---|
686 | switch (element.type.toLowerCase()) { |
---|
687 | case 'submit': |
---|
688 | case 'hidden': |
---|
689 | case 'password': |
---|
690 | case 'text': |
---|
691 | return Form.Element.Serializers.textarea(element); |
---|
692 | case 'checkbox': |
---|
693 | case 'radio': |
---|
694 | return Form.Element.Serializers.inputSelector(element); |
---|
695 | } |
---|
696 | return false; |
---|
697 | }, |
---|
698 | |
---|
699 | inputSelector: function(element) { |
---|
700 | if (element.checked) |
---|
701 | return [element.name, element.value]; |
---|
702 | }, |
---|
703 | |
---|
704 | textarea: function(element) { |
---|
705 | return [element.name, element.value]; |
---|
706 | }, |
---|
707 | |
---|
708 | select: function(element) { |
---|
709 | var value = ''; |
---|
710 | if (element.type == 'select-one') { |
---|
711 | var index = element.selectedIndex; |
---|
712 | if (index >= 0) |
---|
713 | value = element.options[index].value || element.options[index].text; |
---|
714 | } else { |
---|
715 | value = new Array(); |
---|
716 | for (var i = 0; i < element.length; i++) { |
---|
717 | var opt = element.options[i]; |
---|
718 | if (opt.selected) |
---|
719 | value.push(opt.value || opt.text); |
---|
720 | } |
---|
721 | } |
---|
722 | return [element.name, value]; |
---|
723 | } |
---|
724 | } |
---|
725 | |
---|
726 | /*--------------------------------------------------------------------------*/ |
---|
727 | |
---|
728 | var $F = Form.Element.getValue; |
---|
729 | |
---|
730 | /*--------------------------------------------------------------------------*/ |
---|
731 | |
---|
732 | Abstract.TimedObserver = function() {} |
---|
733 | Abstract.TimedObserver.prototype = { |
---|
734 | initialize: function(element, frequency, callback) { |
---|
735 | this.frequency = frequency; |
---|
736 | this.element = $(element); |
---|
737 | this.callback = callback; |
---|
738 | |
---|
739 | this.lastValue = this.getValue(); |
---|
740 | this.registerCallback(); |
---|
741 | }, |
---|
742 | |
---|
743 | registerCallback: function() { |
---|
744 | setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); |
---|
745 | }, |
---|
746 | |
---|
747 | onTimerEvent: function() { |
---|
748 | var value = this.getValue(); |
---|
749 | if (this.lastValue != value) { |
---|
750 | this.callback(this.element, value); |
---|
751 | this.lastValue = value; |
---|
752 | } |
---|
753 | } |
---|
754 | } |
---|
755 | |
---|
756 | Form.Element.Observer = Class.create(); |
---|
757 | Form.Element.Observer.prototype = (new Abstract.TimedObserver()).extend({ |
---|
758 | getValue: function() { |
---|
759 | return Form.Element.getValue(this.element); |
---|
760 | } |
---|
761 | }); |
---|
762 | |
---|
763 | Form.Observer = Class.create(); |
---|
764 | Form.Observer.prototype = (new Abstract.TimedObserver()).extend({ |
---|
765 | getValue: function() { |
---|
766 | return Form.serialize(this.element); |
---|
767 | } |
---|
768 | }); |
---|
769 | |
---|
770 | /*--------------------------------------------------------------------------*/ |
---|
771 | |
---|
772 | Abstract.EventObserver = function() {} |
---|
773 | Abstract.EventObserver.prototype = { |
---|
774 | initialize: function(element, callback) { |
---|
775 | this.element = $(element); |
---|
776 | this.callback = callback; |
---|
777 | |
---|
778 | this.lastValue = this.getValue(); |
---|
779 | if (this.element.tagName.toLowerCase() == 'form') |
---|
780 | this.registerFormCallbacks(); |
---|
781 | else |
---|
782 | this.registerCallback(this.element); |
---|
783 | }, |
---|
784 | |
---|
785 | onElementEvent: function() { |
---|
786 | var value = this.getValue(); |
---|
787 | if (this.lastValue != value) { |
---|
788 | this.callback(this.element, value); |
---|
789 | this.lastValue = value; |
---|
790 | } |
---|
791 | }, |
---|
792 | |
---|
793 | registerFormCallbacks: function() { |
---|
794 | var elements = Form.getElements(this.element); |
---|
795 | for (var i = 0; i < elements.length; i++) |
---|
796 | this.registerCallback(elements[i]); |
---|
797 | }, |
---|
798 | |
---|
799 | registerCallback: function(element) { |
---|
800 | if (element.type) { |
---|
801 | switch (element.type.toLowerCase()) { |
---|
802 | case 'checkbox': |
---|
803 | case 'radio': |
---|
804 | element.target = this; |
---|
805 | element.prev_onclick = element.onclick || Prototype.emptyFunction; |
---|
806 | element.onclick = function() { |
---|
807 | this.prev_onclick(); |
---|
808 | this.target.onElementEvent(); |
---|
809 | } |
---|
810 | break; |
---|
811 | case 'password': |
---|
812 | case 'text': |
---|
813 | case 'textarea': |
---|
814 | case 'select-one': |
---|
815 | case 'select-multiple': |
---|
816 | element.target = this; |
---|
817 | element.prev_onchange = element.onchange || Prototype.emptyFunction; |
---|
818 | element.onchange = function() { |
---|
819 | this.prev_onchange(); |
---|
820 | this.target.onElementEvent(); |
---|
821 | } |
---|
822 | break; |
---|
823 | } |
---|
824 | } |
---|
825 | } |
---|
826 | } |
---|
827 | |
---|
828 | Form.Element.EventObserver = Class.create(); |
---|
829 | Form.Element.EventObserver.prototype = (new Abstract.EventObserver()).extend({ |
---|
830 | getValue: function() { |
---|
831 | return Form.Element.getValue(this.element); |
---|
832 | } |
---|
833 | }); |
---|
834 | |
---|
835 | Form.EventObserver = Class.create(); |
---|
836 | Form.EventObserver.prototype = (new Abstract.EventObserver()).extend({ |
---|
837 | getValue: function() { |
---|
838 | return Form.serialize(this.element); |
---|
839 | } |
---|
840 | }); |
---|
841 | |
---|
842 | |
---|
843 | if (!window.Event) { |
---|
844 | var Event = new Object(); |
---|
845 | } |
---|
846 | |
---|
847 | Object.extend(Event, { |
---|
848 | KEY_BACKSPACE: 8, |
---|
849 | KEY_TAB: 9, |
---|
850 | KEY_RETURN: 13, |
---|
851 | KEY_ESC: 27, |
---|
852 | KEY_LEFT: 37, |
---|
853 | KEY_UP: 38, |
---|
854 | KEY_RIGHT: 39, |
---|
855 | KEY_DOWN: 40, |
---|
856 | KEY_DELETE: 46, |
---|
857 | |
---|
858 | element: function(event) { |
---|
859 | return event.target || event.srcElement; |
---|
860 | }, |
---|
861 | |
---|
862 | isLeftClick: function(event) { |
---|
863 | return (((event.which) && (event.which == 1)) || |
---|
864 | ((event.button) && (event.button == 1))); |
---|
865 | }, |
---|
866 | |
---|
867 | pointerX: function(event) { |
---|
868 | return event.pageX || (event.clientX + |
---|
869 | (document.documentElement.scrollLeft || document.body.scrollLeft)); |
---|
870 | }, |
---|
871 | |
---|
872 | pointerY: function(event) { |
---|
873 | return event.pageY || (event.clientY + |
---|
874 | (document.documentElement.scrollTop || document.body.scrollTop)); |
---|
875 | }, |
---|
876 | |
---|
877 | stop: function(event) { |
---|
878 | if (event.preventDefault) { |
---|
879 | event.preventDefault(); |
---|
880 | event.stopPropagation(); |
---|
881 | } else { |
---|
882 | event.returnValue = false; |
---|
883 | } |
---|
884 | }, |
---|
885 | |
---|
886 | // find the first node with the given tagName, starting from the |
---|
887 | // node the event was triggered on; traverses the DOM upwards |
---|
888 | findElement: function(event, tagName) { |
---|
889 | var element = Event.element(event); |
---|
890 | while (element.parentNode && (!element.tagName || |
---|
891 | (element.tagName.toUpperCase() != tagName.toUpperCase()))) |
---|
892 | element = element.parentNode; |
---|
893 | return element; |
---|
894 | }, |
---|
895 | |
---|
896 | observers: false, |
---|
897 | |
---|
898 | _observeAndCache: function(element, name, observer, useCapture) { |
---|
899 | if (!this.observers) this.observers = []; |
---|
900 | if (element.addEventListener) { |
---|
901 | this.observers.push([element, name, observer, useCapture]); |
---|
902 | element.addEventListener(name, observer, useCapture); |
---|
903 | } else if (element.attachEvent) { |
---|
904 | this.observers.push([element, name, observer, useCapture]); |
---|
905 | element.attachEvent('on' + name, observer); |
---|
906 | } |
---|
907 | }, |
---|
908 | |
---|
909 | unloadCache: function() { |
---|
910 | if (!Event.observers) return; |
---|
911 | for (var i = 0; i < Event.observers.length; i++) { |
---|
912 | Event.stopObserving.apply(this, Event.observers[i]); |
---|
913 | Event.observers[i][0] = null; |
---|
914 | } |
---|
915 | Event.observers = false; |
---|
916 | }, |
---|
917 | |
---|
918 | observe: function(element, name, observer, useCapture) { |
---|
919 | var element = $(element); |
---|
920 | useCapture = useCapture || false; |
---|
921 | |
---|
922 | if (name == 'keypress' && |
---|
923 | ((navigator.appVersion.indexOf('AppleWebKit') > 0) |
---|
924 | || element.attachEvent)) |
---|
925 | name = 'keydown'; |
---|
926 | |
---|
927 | this._observeAndCache(element, name, observer, useCapture); |
---|
928 | }, |
---|
929 | |
---|
930 | stopObserving: function(element, name, observer, useCapture) { |
---|
931 | var element = $(element); |
---|
932 | useCapture = useCapture || false; |
---|
933 | |
---|
934 | if (name == 'keypress' && |
---|
935 | ((navigator.appVersion.indexOf('AppleWebKit') > 0) |
---|
936 | || element.detachEvent)) |
---|
937 | name = 'keydown'; |
---|
938 | |
---|
939 | if (element.removeEventListener) { |
---|
940 | element.removeEventListener(name, observer, useCapture); |
---|
941 | } else if (element.detachEvent) { |
---|
942 | element.detachEvent('on' + name, observer); |
---|
943 | } |
---|
944 | } |
---|
945 | }); |
---|
946 | |
---|
947 | /* prevent memory leaks in IE */ |
---|
948 | Event.observe(window, 'unload', Event.unloadCache, false); |
---|
949 | |
---|
950 | var Position = { |
---|
951 | |
---|
952 | // set to true if needed, warning: firefox performance problems |
---|
953 | // NOT neeeded for page scrolling, only if draggable contained in |
---|
954 | // scrollable elements |
---|
955 | includeScrollOffsets: false, |
---|
956 | |
---|
957 | // must be called before calling withinIncludingScrolloffset, every time the |
---|
958 | // page is scrolled |
---|
959 | prepare: function() { |
---|
960 | this.deltaX = window.pageXOffset |
---|
961 | || document.documentElement.scrollLeft |
---|
962 | || document.body.scrollLeft |
---|
963 | || 0; |
---|
964 | this.deltaY = window.pageYOffset |
---|
965 | || document.documentElement.scrollTop |
---|
966 | || document.body.scrollTop |
---|
967 | || 0; |
---|
968 | }, |
---|
969 | |
---|
970 | realOffset: function(element) { |
---|
971 | var valueT = 0, valueL = 0; |
---|
972 | do { |
---|
973 | valueT += element.scrollTop || 0; |
---|
974 | valueL += element.scrollLeft || 0; |
---|
975 | element = element.parentNode; |
---|
976 | } while (element); |
---|
977 | return [valueL, valueT]; |
---|
978 | }, |
---|
979 | |
---|
980 | cumulativeOffset: function(element) { |
---|
981 | var valueT = 0, valueL = 0; |
---|
982 | do { |
---|
983 | valueT += element.offsetTop || 0; |
---|
984 | valueL += element.offsetLeft || 0; |
---|
985 | element = element.offsetParent; |
---|
986 | } while (element); |
---|
987 | return [valueL, valueT]; |
---|
988 | }, |
---|
989 | |
---|
990 | // caches x/y coordinate pair to use with overlap |
---|
991 | within: function(element, x, y) { |
---|
992 | if (this.includeScrollOffsets) |
---|
993 | return this.withinIncludingScrolloffsets(element, x, y); |
---|
994 | this.xcomp = x; |
---|
995 | this.ycomp = y; |
---|
996 | this.offset = this.cumulativeOffset(element); |
---|
997 | |
---|
998 | return (y >= this.offset[1] && |
---|
999 | y < this.offset[1] + element.offsetHeight && |
---|
1000 | x >= this.offset[0] && |
---|
1001 | x < this.offset[0] + element.offsetWidth); |
---|
1002 | }, |
---|
1003 | |
---|
1004 | withinIncludingScrolloffsets: function(element, x, y) { |
---|
1005 | var offsetcache = this.realOffset(element); |
---|
1006 | |
---|
1007 | this.xcomp = x + offsetcache[0] - this.deltaX; |
---|
1008 | this.ycomp = y + offsetcache[1] - this.deltaY; |
---|
1009 | this.offset = this.cumulativeOffset(element); |
---|
1010 | |
---|
1011 | return (this.ycomp >= this.offset[1] && |
---|
1012 | this.ycomp < this.offset[1] + element.offsetHeight && |
---|
1013 | this.xcomp >= this.offset[0] && |
---|
1014 | this.xcomp < this.offset[0] + element.offsetWidth); |
---|
1015 | }, |
---|
1016 | |
---|
1017 | // within must be called directly before |
---|
1018 | overlap: function(mode, element) { |
---|
1019 | if (!mode) return 0; |
---|
1020 | if (mode == 'vertical') |
---|
1021 | return ((this.offset[1] + element.offsetHeight) - this.ycomp) / |
---|
1022 | element.offsetHeight; |
---|
1023 | if (mode == 'horizontal') |
---|
1024 | return ((this.offset[0] + element.offsetWidth) - this.xcomp) / |
---|
1025 | element.offsetWidth; |
---|
1026 | }, |
---|
1027 | |
---|
1028 | clone: function(source, target) { |
---|
1029 | source = $(source); |
---|
1030 | target = $(target); |
---|
1031 | target.style.position = 'absolute'; |
---|
1032 | var offsets = this.cumulativeOffset(source); |
---|
1033 | target.style.top = offsets[1] + 'px'; |
---|
1034 | target.style.left = offsets[0] + 'px'; |
---|
1035 | target.style.width = source.offsetWidth + 'px'; |
---|
1036 | target.style.height = source.offsetHeight + 'px'; |
---|
1037 | } |
---|
1038 | } |
---|