function CopyURL(){  
var myHerf=top.location.href;  
var title=document.title;  
if(window.clipboardData){  
var tempCurLink=title + "\n" + myHerf;  
var ok=window.clipboardData.setData("Text",tempCurLink);  
if(ok) alert("复制地址成功，按Ctrl + V ,粘贴到MSN、QQ上发给你的好友们吧 ！");  
}else{alert("对不起，目前此功能只支持IE，请直接复制地址栏的地址！");}  
}  
var getHost = function(url) 
{
    var host = "null";
    if(typeof url == "undefined"|| null == url)
    { 
        url = window.location.href;
    }
       var regex = /.*\:\/\/([^\/]*).*/; 
    var match = url.match(regex); 
    if(typeof match != "undefined" && null != match)
    {
        host = match[1];
    }
    return host;
}

function SetHome(href) {
    href.style.behavior = 'url(#default#homepage)';
    href.setHomePage(window.location.href);
}

function AddFavorite() {
    window.external.addFavorite(window.location.href, document.title);

}
String.prototype.trim=function()
{
        return this.replace(/(^\s*)|(\s*$)/g, "");
}
function GetXmlHttp()
{
    var http_request;
    if (window.XMLHttpRequest)
    {
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType)
        {
            http_request.overrideMimeType("text/xml");
        }
    }
    else if (window.ActiveXObject)
    {
        try
        {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch(e)
        {
            try
            {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch(ex)
            {}
        }
    }
    return http_request;
}

function openWin(href,url)
{   
    href.target="_blank";
    href.href = url;
//    href.click();
} 

function AddLoadEvent(func)
{
    var oldonload=window.onload;
    if(typeof window.onload!= 'function')
    {
        window.onload=func;
    }
    else
    {
        window.onload=function()
        {
            oldonload();
            func();
        }
    }
}
String.prototype.trim = function () {
    return this.replace(/(^\s*)|(\s*$)/g, "");
}
function btnAnswerClick() {
    return false;
    var answer = document.getElementById("txtAnswer").value.trim();

    if (answer == "")
        return false;
    else
        return true;
}