sending request and parameter when submit from using ajax

I want to submit a form using jquery .post(). I want to send all the input names in addition to another parameter, in there any way to send data and the request?

 $.post("RegistrarManagementServlet",{"option":"cancelRequest"},function(){
                alert("hi");
            });

here is how we submit the request

  $.post("RegistrarManagementServlet",request,function(){
                alert("hi");
            });

I want to send all the data in the form (in the normal post request) in addition to option parameter, how can I make it?

EDIT

where should I define the request as function parameter, since the code occurs after confirmation dialog appear

开发者_C百科

$('#cancelRequest').click(function(event){
    event.preventDefault();
    jConfirm('Are you sure to delete registrar request?', 'Confirmation Dialog', function(result) {

        if(result == true){
            request.cancelRequest="cancelRequest";   //request is not defiend
            $.post("RegistrarManagementServlet",request,function(){
                alert("hi");
            });
          }

    });

---

request.option = "cancelRequest";

$.post("RegistrarManagementServlet", request, function(){
  alert("hi");
});

---

You can make name value pair by using following code

 var elem = document.getElementById('frmName').elements;
 for(var i = 0; i < elem.length; i++)
   {
      //Make the pairs like 
        //{"option":"cancelRequest"}
      //elem[i].name will give you the name and
      //elem[i].value will give you the value of the field           
   }

then post your request just the way you do.

Or you can see the example at http://www.codeunit.co.za/2009/11/04/jquery-iterate-through-a-forms-elements/ for a Jquery way to do the same

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You can use jQuery's $.extend(): $.post('url', $.extend(request, {more: 'parameters'}), function...