To submit a form with AJAX (without reloading the page), you can use the ajaxForm/ajaxSubmit functions from Ajax Form Plugin or the jQuery serialize function.

AjaxForm:

$("#theForm").ajaxForm({url: 'server.php', type: 'post'})

or alternatively:-

$("#theForm").ajaxSubmit({url: 'server.php', type: 'post'})

ajaxForm will send when the submit button is pressed. ajaxSubmit sends immediately.

Serialize Method:

$.get('server.php?' + $('#theForm').serialize())

$.post('server.php', $('#theForm').serialize())

You can read the AJAX serialization documentation is here.