How to pass parameters to controller using ajax and javascript? -
    i trying delete item shopping cart using ajax javascript, have trouble passing parameters controller. parameters null in controller.   my javascript code shows below:   function removerow(itemid, rowid){         if (xmlhttp == null)         {             alert("your browser not support ajax!");             return;         }         var query = "action=remove&item=" + itemid;          /* alert(query); */         xmlhttp.onreadystatechange = function statechanged()         {             if (xmlhttp.readystate == 4)             {                 var row = document.getelementbyid(rowid);                 row.parentnode.removechild(row);             }         };         xmlhttp.open("get", "addto.htm", true);         xmlhttp.setrequestheader("content-type", "application/x-www-form-urlencoded");         xmlhttp.send(query);         return false;          /* var row = document.getelementbyid(rowid);         row.parentnode.remo...