//搜索文章
function doSearch(key,channel)
{
    var url;
    if (channel != null && channel.length > 0)
        url = channel + "search.aspx?mode=search&"
    else
       url="/search.aspx?";
    if(key)
    {
        url+="keyword="+encodeURIComponent(key.value);
    }
	window.location=url;
}

function QueryString(name){
    var qs=name+"=";
    var str=location.search;
    if(str.length>0){
        begin=str.indexOf(qs);
        if(begin!=-1){
            begin+=qs.length;
            end=str.indexOf("&",begin);
            if(end==-1)end=str.length;
            return(str.substring(begin,end));
        }
    }
    return null;
}