1// jQuery ajax form submit example, runs when form is submitted
2$("#myFormID").submit(function(e) {
3    e.preventDefault(); // prevent actual form submit
4    var form = $(this);
5    var url = form.attr('action'); //get submit url [replace url here if desired]
6    $.ajax({
7         type: "POST",
8         url: url,
9         data: form.serialize(), // serializes form input
10         success: function(data){
11             console.log(data);
12         }
13    });
14});

1// It is simply
2$('form').submit();
3
4// However, you're most likely wanting to operate on the form data
5// So you will have to do something like the following...
6$('form').submit(function(e){
7	// Stop the form submitting
8  	e.preventDefault();
9  	// Do whatever it is you wish to do
10  	//...
11  	// Now submit it 
12    // Don't use $(this).submit() FFS!
13  	// You'll never leave this function & smash the call stack! :D
14  	e.currentTarget.submit();
15});

1$('#button1').click(function(){
2   $('#formId').attr('action', 'page1');
3});
4
5
6$('#button2').click(function(){
7   $('#formId').attr('action', 'page2');
8});
9

1$(document).ready(function(){
2    $("#submitBtn").click(function(){        
3        $("#myForm").submit(); // Submit the form
4    });
5});

1 $("#myform").submit(function(e) {
2 })

1<input type='button' value='Submit form' onClick='submitDetailsForm()' />
2
3<script language="javascript" type="text/javascript">
4    function submitDetailsForm() {
5       $("#formId").submit();
6    }
7</script>
8