JavaScript获得URL参数

      
       //获取URL中指定参数的值，参数name为URL参数名，返回改参数名的参数值
        function GetQueryStringRegExp(name)
        {
                var reg = new RegExp("(^|\\?|&)"+ name +"=([^&]*)(\\s|&|$)", "i");
                if (reg.test(location.href))
                return unescape(RegExp.$2.replace(/\+/g, " ")); return "";
        }