[jQuery] onLoading and onComplete Event Methods in JQuery

[Gaurav]

Hi All,

I am new to Jquery , i implemented the Ajax request in my web
application using prototype.js but because of some issues i need to
replace prototype.js with jquery so i gone through the jquery
documentation but i did not found any replacement for the onLoading of
prototype.js

My Current code implementation in prototype.js is

                pars += 'postId=' + postId;
                pars += '&comment=' + comment;
                pars += '&postauthor=' + postauthor;
                 var myAjax  = new Ajax.Request(
                        url,
                        {
                                method: 'post',
                                parameters: pars,
                                onLoading: function(){
                                        var successmsgDiv = $
(successmsg);
                                        successmsgDiv.style.display =
"block";
                                        successmsgDiv.innerHTML =
'<img src="<?php echo site_url(); ?>/processing1.gif" BORDER="0"
alt="processing" />';
                                        $(buttonId).disabled = true;
                                },
                                onComplete: function(transport){
                                        var successmsgDiv = $
(successmsg);
                                        successmsgDiv.update
(transport.responseText).setStyle({display:'block'});
                                        frmId.elements
['txtcomment'].value = "";
                                        var postDiv = $
(postcommentdiv);
                                        postDiv.style.display="none";
                                        $(buttonId).disabled = false;
                                }
                        }
                );

Can any body help me how to do this in jquery.

Any help or suggestion would be greatly appriciated.

Thanks
Gaurav