... Line number 215
		onkeyup: function(element) {
			// Altered by Jeroen van de Pol, grouped variables will also be checked on keyup
			if (element.name in this.submitted || element == this.lastElement ) {
				var check = this;
				if($(this.settings.groups).length > 0) {
					$.each($(this.settings.groups), function(index, group){
						$.each(group, function(group, elements){
							// check if current element exist in this group
							if(elements.indexOf(element.id) > -1) {
								$.each(elements.split(' '), function(index, el){
									if($('#'+el)) {
										check.element($('#'+el));
									}
								});
							}
						});
					});
				} 
				this.element(element);
			}
		},