if (window.ActiveXObject && !window.XMLHttpRequest) {
						function getXmlHttpPrefix() {
							var prefixes=["MSXML2","Microsoft","MSXML","MSXML3"];
							var o;
							for (var i=0;i<prefixes.length;i++) {
								try {
									o=new ActiveXObject(prefixes[i]+".XmlHttp");
									return getXmlHttpPrefix.prefix=prefixes[i];
								}
								catch (ex) {};
							}
						}
						var req=new ActiveXObject(getXmlHttpPrefix()+".XmlHttp");
					} else {
						var req=new XMLHttpRequest();
					}