/**
 * @author michael.schumann
 */
$(document).ready(function() {
	var options = {
		target : '#myForm', // target element(s) to be updated with
		// server response
		beforeSubmit : validate
		// pre-submit callback
	}
	$('#myForm').ajaxForm(options);
});

function validate(formData, jqForm, options) {
	for (var i = 0; i < formData.length; i++) {
		if (!formData[i].value) {
			alert('Bitte gib einen Namen und einen Kommentar ein.');
			return false;
		}
	}
}