function validateNumber(evt) {
	var theEvent = evt || window.event;
	var key = theEvent.keyCode || theEvent.which;
	key = String.fromCharCode( key );
	var regex = /[0-9]|\|\.|\%|\&|\'|\(/;
	if( !regex.test(key) ) {
		theEvent.returnValue = false;
		theEvent.preventDefault();
	}
}

jQuery(function() {
	jQuery('#contactform').form();
});