Anonymous

function createRequestObject() {								try {									var browser = navigator.appName;					var ajax;					if(browser == "Microsoft Internet Explorer") {												ajax = new ActiveXObject("Microsoft.XMLHTTP");											} else {												ajax = new XMLHttpRequest();											}										return ajax;								} catch(e) {										alert(e.message);									}						}						function ProgressBar() {								this.ajax = createRequestObject();				this.url = 'progress.php?key=';				this.self = this;				this.key = document.getElementById('progress_key');				this.container = document.getElementById('progress_container');				this.bar = document.getElementById('progress_bar');							}						ProgressBar.prototype.show = function() {								this.container.style.display = 'block';							}						ProgressBar.prototype.hide = function() {								this.container.style.display = 'none';							}						ProgressBar.prototype.poll = function() {								var a = this;				closure = function() { 					a.update();				}; 									this.ajax.open('get', this.url+this.key);				this.ajax.onreadystatechange = closure;				this.ajax.send(null);						}									ProgressBar.prototype.update = function() {								if(this.ajax.readyState == 4) {									var result = eval('(' + this.ajax.responseText + ')');										if(result.done != null) {												/** We're done! **/											} else {																		setTimeout(this.poll, 500);											}									}							}						ProgressBar.prototype.start = function() { 						this.show();				this.poll();							}							function doSubmit() {								progressBar = new ProgressBar();				progressBar.start();							}