jquery获得浏览器请求参数值

<script type="text/javascript" src="/test/js/jquery/jquery-1.3.2.js"></script>
 <SCRIPT type="text/javascript">
 
 
    /*--获取网页传递的参数--*/
        function request(paras) {
            var url = location.href;
            var paramStr = url.substring(url.indexOf('?') + 1, url.length).split('&');
            var j;
            var paramObj = {};
            for (var i = 0; j = paramStr[i]; i++) {
                paramObj[j.substring(0, j.indexOf('=')).toLowerCase()] = j.substring(j.indexOf('=') + 1, j.length);
            }
            
            var returnValue=paramObj[paras.toLowerCase()];

            if (typeof (returnValue) == "undefined") {
                return "";
            } else {
                return returnValue;
            }
        }
        
        
 
    $(document).ready(function(){
     
      
       // form3.namespace="/offercustomersellratedetail";
        form3.action="/cbill/offercustomersellratedetail/offercustomersellratedetail!list.do?numcusellrateguid="+request("numcusellrateguid");
        form3.submit();  
    	
    });
    
     </SCRIPT>