Will over ride the form submit event
$('#left form').submit(function(){
// gather the form data
var data=$(this).serialize();
// post data
$.post('somepage.php', data , function(returnData){
// insert returned html
$('#right').html( returnData)
})
return false; // stops browser from doing default submit process
});
This will now be available from either a submit input in form itself or may be triggered by some other page event using:
$('#left form').submit()