521 lines
13 KiB
JavaScript
521 lines
13 KiB
JavaScript
var Prototype = {
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Version: '1.2.1'
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};
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var Class = {
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create: function() {
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return function() {
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this.initialize.apply(this, arguments);
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}
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}
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};
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var Abstract = new Object();
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Object.prototype.extend = function(object) {
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for (property in object) {
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this[property] = object[property];
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}
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return this;
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};
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Function.prototype.bind = function(object) {
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var method = this;
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return function() {
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method.apply(object, arguments);
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}
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};
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Function.prototype.bindAsEventListener = function(object) {
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var method = this;
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return function(event) {
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method.call(object, event || window.event);
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}
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};
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Number.prototype.toColorPart = function() {
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var digits = this.toString(16);
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if (this < 16) return '0' + digits;
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return digits;
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};
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var Try = {
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these: function() {
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var returnValue;
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for (var i = 0; i < arguments.length; i++) {
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var lambda = arguments[i];
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try {
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returnValue = lambda();
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break;
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} catch (e) {}
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}
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return returnValue;
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}
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};
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var PeriodicalExecuter = Class.create();
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PeriodicalExecuter.prototype = {
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initialize: function(callback, frequency) {
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this.callback = callback;
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this.frequency = frequency;
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this.currentlyExecuting = false;
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this.registerCallback();
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},
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registerCallback: function() {
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setTimeout(this.onTimerEvent.bind(this), this.frequency * 1000);
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},
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onTimerEvent: function() {
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if (!this.currentlyExecuting) {
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try {
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this.currentlyExecuting = true;
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this.callback();
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} finally {
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this.currentlyExecuting = false;
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}
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}
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this.registerCallback();
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}
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};
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function $() {
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var elements = new Array();
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for (var i = 0; i < arguments.length; i++) {
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var element = arguments[i];
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if (typeof element == 'string')
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element = document.getElementById(element);
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if (arguments.length == 1)
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return element;
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elements.push(element);
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}
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return elements;
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};
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if (!Array.prototype.push) {
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Array.prototype.push = function() {
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var startLength = this.length;
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for (var i = 0; i < arguments.length; i++)
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this[startLength + i] = arguments[i];
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return this.length;
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};
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};
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if (!Function.prototype.apply) {
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// Based on code from http://www.youngpup.net/
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Function.prototype.apply = function(object, parameters) {
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var parameterStrings = new Array();
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if (!object) object = window;
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if (!parameters) parameters = new Array();
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for (var i = 0; i < parameters.length; i++)
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parameterStrings[i] = 'x[' + i + ']';
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object.__apply__ = this;
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var result = eval('obj.__apply__(' +
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parameterStrings[i].join(', ') + ')');
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object.__apply__ = null;
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return result;
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};
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};
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var Ajax = {
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getTransport: function() {
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return Try.these(
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function() {return new ActiveXObject('Msxml2.XMLHTTP')},
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function() {return new ActiveXObject('Microsoft.XMLHTTP')},
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function() {return new XMLHttpRequest()}
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) || false;
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},
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emptyFunction: function() {}
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};
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Ajax.Base = function() {};
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Ajax.Base.prototype = {
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setOptions: function(options) {
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this.options = {
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method: 'post',
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asynchronous: true,
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parameters: ''
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}.extend(options || {});
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}
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};
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Ajax.Request = Class.create();
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Ajax.Request.Events =
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['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
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Ajax.Request.prototype = (new Ajax.Base()).extend({
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initialize: function(url, options) {
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this.transport = Ajax.getTransport();
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this.setOptions(options);
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try {
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if (this.options.method == 'get')
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url += '?' + this.options.parameters + '&_=';
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this.transport.open(this.options.method, url,
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this.options.asynchronous);
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if (this.options.asynchronous) {
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this.transport.onreadystatechange = this.onStateChange.bind(this);
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setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);
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}
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this.transport.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
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this.transport.setRequestHeader('X-Prototype-Version', Prototype.Version);
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if (this.options.method == 'post') {
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this.transport.setRequestHeader('Connection', 'close');
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this.transport.setRequestHeader('Content-type',
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'application/x-www-form-urlencoded');
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}
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this.transport.send(this.options.method == 'post' ?
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this.options.parameters + '&_=' : null);
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} catch (e) {
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}
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},
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onStateChange: function() {
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var readyState = this.transport.readyState;
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if (readyState != 1)
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this.respondToReadyState(this.transport.readyState);
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},
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respondToReadyState: function(readyState) {
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var event = Ajax.Request.Events[readyState];
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(this.options['on' + event] || Ajax.emptyFunction)(this.transport);
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}
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});
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Ajax.Updater = Class.create();
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Ajax.Updater.prototype = (new Ajax.Base()).extend({
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initialize: function(container, url, options) {
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this.container = $(container);
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this.setOptions(options);
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if (this.options.asynchronous) {
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this.onComplete = this.options.onComplete;
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this.options.onComplete = this.updateContent.bind(this);
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}
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this.request = new Ajax.Request(url, this.options);
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if (!this.options.asynchronous)
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this.updateContent();
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},
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updateContent: function() {
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if (this.options.insertion) {
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new this.options.insertion(this.container,
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this.request.transport.responseText);
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} else {
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this.container.innerHTML = this.request.transport.responseText;
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}
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if (this.onComplete) {
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setTimeout((function() {this.onComplete(this.request)}).bind(this), 10);
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}
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}
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});
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var Field = {
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clear: function() {
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for (var i = 0; i < arguments.length; i++)
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$(arguments[i]).value = '';
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},
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focus: function(element) {
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$(element).focus();
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},
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present: function() {
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for (var i = 0; i < arguments.length; i++)
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if ($(arguments[i]).value == '') return false;
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return true;
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},
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select: function(element) {
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$(element).select();
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},
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activate: function(element) {
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$(element).focus();
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$(element).select();
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}
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};
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var Form = {
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serialize: function(form) {
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var elements = Form.getElements($(form));
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var queryComponents = new Array();
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for (var i = 0; i < elements.length; i++) {
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var queryComponent = Form.Element.serialize(elements[i]);
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if (queryComponent)
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queryComponents.push(queryComponent);
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}
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return queryComponents.join('&');
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},
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getElements: function(form) {
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form = $(form);
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var elements = new Array();
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for (tagName in Form.Element.Serializers) {
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var tagElements = form.getElementsByTagName(tagName);
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for (var j = 0; j < tagElements.length; j++)
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elements.push(tagElements[j]);
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}
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return elements;
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},
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disable: function(form) {
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var elements = Form.getElements(form);
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for (var i = 0; i < elements.length; i++) {
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var element = elements[i];
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element.blur();
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element.disable = 'true';
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}
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},
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focusFirstElement: function(form) {
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form = $(form);
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var elements = Form.getElements(form);
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for (var i = 0; i < elements.length; i++) {
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var element = elements[i];
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if (element.type != 'hidden' && !element.disabled) {
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Field.activate(element);
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break;
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}
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}
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},
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reset: function(form) {
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$(form).reset();
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}
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};
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Form.Element = {
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serialize: function(element) {
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element = $(element);
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var method = element.tagName.toLowerCase();
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var parameter = Form.Element.Serializers[method](element);
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if (parameter)
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return encodeURIComponent(parameter[0]) + '=' +
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encodeURIComponent(parameter[1]);
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},
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getValue: function(element) {
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element = $(element);
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var method = element.tagName.toLowerCase();
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var parameter = Form.Element.Serializers[method](element);
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if (parameter)
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return parameter[1];
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}
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};
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Form.Element.Serializers = {
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input: function(element) {
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switch (element.type.toLowerCase()) {
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case 'hidden':
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case 'password':
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case 'text':
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return Form.Element.Serializers.textarea(element);
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case 'checkbox':
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case 'radio':
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return Form.Element.Serializers.inputSelector(element);
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}
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return false;
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},
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inputSelector: function(element) {
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if (element.checked)
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return [element.name, element.value];
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},
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textarea: function(element) {
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return [element.name, element.value];
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},
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select: function(element) {
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var index = element.selectedIndex;
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var value = element.options[index].value || element.options[index].text;
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return [element.name, (index >= 0) ? value : ''];
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}
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};
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var $F = Form.Element.getValue;
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Abstract.TimedObserver = function() {};
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Abstract.TimedObserver.prototype = {
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initialize: function(element, frequency, callback) {
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this.frequency = frequency;
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this.element = $(element);
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this.callback = callback;
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this.lastValue = this.getValue();
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this.registerCallback();
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},
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registerCallback: function() {
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setTimeout(this.onTimerEvent.bind(this), this.frequency * 1000);
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},
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onTimerEvent: function() {
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var value = this.getValue();
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if (this.lastValue != value) {
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this.callback(this.element, value);
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this.lastValue = value;
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}
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this.registerCallback();
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}
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};
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Form.Element.Observer = Class.create();
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Form.Element.Observer.prototype = (new Abstract.TimedObserver()).extend({
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getValue: function() {
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return Form.Element.getValue(this.element);
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}
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});
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Form.Observer = Class.create();
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Form.Observer.prototype = (new Abstract.TimedObserver()).extend({
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getValue: function() {
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return Form.serialize(this.element);
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}
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});
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document.getElementsByClassName = function(className) {
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var children = document.getElementsByTagName('*') || document.all;
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var elements = new Array();
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for (var i = 0; i < children.length; i++) {
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var child = children[i];
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var classNames = child.className.split(' ');
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for (var j = 0; j < classNames.length; j++) {
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if (classNames[j] == className) {
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elements.push(child);
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break;
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}
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}
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}
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return elements;
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};
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var Element = {
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toggle: function() {
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for (var i = 0; i < arguments.length; i++) {
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var element = $(arguments[i]);
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element.style.display =
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(element.style.display == 'none' ? '' : 'none');
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}
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},
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hide: function() {
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for (var i = 0; i < arguments.length; i++) {
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var element = $(arguments[i]);
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element.style.display = 'none';
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}
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},
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show: function() {
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for (var i = 0; i < arguments.length; i++) {
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var element = $(arguments[i]);
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element.style.display = '';
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}
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},
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remove: function(element) {
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element = $(element);
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element.parentNode.removeChild(element);
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},
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getHeight: function(element) {
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element = $(element);
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return element.offsetHeight;
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}
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};
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var Toggle = new Object();
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Toggle.display = Element.toggle;
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Abstract.Insertion = function(adjacency) {
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this.adjacency = adjacency;
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};
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Abstract.Insertion.prototype = {
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initialize: function(element, content) {
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this.element = $(element);
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this.content = content;
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if (this.adjacency && this.element.insertAdjacentHTML) {
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this.element.insertAdjacentHTML(this.adjacency, this.content);
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} else {
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this.range = this.element.ownerDocument.createRange();
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if (this.initializeRange) this.initializeRange();
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this.fragment = this.range.createContextualFragment(this.content);
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this.insertContent();
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}
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}
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};
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var Insertion = new Object();
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Insertion.Before = Class.create();
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Insertion.Before.prototype = (new Abstract.Insertion('beforeBegin')).extend({
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initializeRange: function() {
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this.range.setStartBefore(this.element);
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},
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insertContent: function() {
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this.element.parentNode.insertBefore(this.fragment, this.element);
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}
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});
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Insertion.Top = Class.create();
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Insertion.Top.prototype = (new Abstract.Insertion('afterBegin')).extend({
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initializeRange: function() {
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this.range.selectNodeContents(this.element);
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this.range.collapse(true);
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},
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insertContent: function() {
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this.element.insertBefore(this.fragment, this.element.firstChild);
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}
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});
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Insertion.Bottom = Class.create();
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Insertion.Bottom.prototype = (new Abstract.Insertion('beforeEnd')).extend({
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initializeRange: function() {
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this.range.selectNodeContents(this.element);
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this.range.collapse(this.element);
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},
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insertContent: function() {
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this.element.appendChild(this.fragment);
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}
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});
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Insertion.After = Class.create();
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Insertion.After.prototype = (new Abstract.Insertion('afterEnd')).extend({
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initializeRange: function() {
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this.range.setStartAfter(this.element);
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},
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insertContent: function() {
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this.element.parentNode.insertBefore(this.fragment,
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this.element.nextSibling);
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}
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}); |