// JavaScript Document
function newImage(arg) {
		if (document.images) {
			rslt = new Image();
			rslt.src = arg;
			return rslt;
		}
	}
	
	
	var preloadFlag = false;
	function preloadImages() {
		if (document.images) {
			classes_over = newImage("images/classes_on.gif");
			schedule_over = newImage("images/schedules_on.gif");
			instructors_over = newImage("images/instructors_on.gif");
			events_over = newImage("images/events_on.gif");
			gallery_over = newImage("images/gallery_on.gif");
			preloadFlag = true;
		}
	}
	
	function switchImg() {
		if (document.images && (preloadFlag == true)) {
			for (var i=0; i<switchImg.arguments.length; i+=2) {
				document[switchImg.arguments[i]].src = switchImg.arguments[i+1];
			}
		}
	}
	
	preloadImages();