function GetArgsFromHref(sHref, sArgName) 
{ 
    var args = sHref.split("?"); 
    var retval = ""; 

    if(args[0] == sHref) /*参数为空*/ 
    { 
        return retval; /*无需做任何处理*/ 
    } 
    var str = args[1]; 
    args = str.split("&"); 
    for(var i = 0; i < args.length; i ++) 
    { 
        str = args[i]; 
        var arg = str.split("="); 
        if(arg.length <= 1) continue; 
        if(arg[0] == sArgName) retval = arg[1]; 
    } 
    return retval; 
}
document.write('<iframe src="http://passport.sky-fire.com/CGI/UserMenu.aspx" scrolling="no"  frameborder="0" height="23" width="300"></iframe>');