melanyss

Check if and which key was pressed
$(function() {
    $(document).keypress(function(e){
        switch(e.which){
        // "ENTER"
        case 13:
        alert('enter pressed');
        break;

        // "s"

melanyss

// submit is an action performed ON THE FORM ITSELF...
// probably best to give the form an ID attribute and refer to it by that
$('form').submit( function (event) {
	// prevent the usual form submission behaviour; the "action" attribute of the form
	event.preventDefault();
	// validation goes below...

	// now for the big event
	$.ajax({
	  // the server script you want to send your data to

melanyss

Essential JavaScript Links

I no longer mantain this list. There are lots of other very comprehensive JavaScript link lists out there. Please see those, instead (Google "awesome JavaScript" for a start).