Avatar automatisch erstellen?

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
	<script>
		(function($) {
			$(document).ready( function() { 
				var $last_image = null;
				var _cd = true;
				$('#image-form').submit( function(e) {
					e.preventDefault();
					var $image = $('#name-input').val().substr(0,15);
					if( $last_image != $image ) {
						if( _cd ) {
							$('#image').html(
								'<img src="image.php?name='+ $image + '" alt="" />'
							);
							_cd = false;
							$last_image = $image;
							setTimeout( function() { _cd = true; }, 1 );
						} else {
							alert("Bitte warte 10 Sekunden!");
						}
					}
				});
			});
		})(jQuery);
	</script>