// JavaScript Document
var xmlObj;
var moz = (typeof document.implementation != 'undefined') && (typeof document.implementation.createDocument != 'undefined');
var ie = (typeof window.ActiveXObject != 'undefined');
function CreateXmlFile(url){	
	 if (moz) {
		xmlObj = document.implementation.createDocument("","",null);//创建FIREFOX下XML文档对象
	 }else{
		 xmlObj = new ActiveXObject("Microsoft.XMLDOM");
	 }
	xmlObj.async=false;
	xmlObj.load(url);
	var node=xmlObj.getElementsByTagName("channel");
	if(node.length>0){
		return "False";
	}else{
		return xmlObj;
	}
}