<script type="text/javascript">
function getQueryString()
{
    var url = window.location.href;
    var num = url.indexOf("?");
    var str = url.substr(num + 1);
    var arr = str.split("&");
    var name = "";
    var value = "";
    for(var i = 0; i < arr.length; i++)
    {
        num = arr[i].indexOf("=");
        if(num > 0)
        {
            name = arr[i].substring(0, num);
            value = arr[i].substr(num + 1);
            this[name] = value;
        }
    }
}
var request = new getQueryString();
alert(request.id);
</script>