function preload(name, first, second) {
	if (browserOK) {
		pics[objCount] = new Array(3);
		pics[objCount][0] = new Image();
		pics[objCount][0].src = first;
		pics[objCount][1] = new Image();
		pics[objCount][1].src = second;
		pics[objCount][2] = name;
		objCount++;
	}
}

function on(name){
	if (browserOK) {
		for (i = 0; i < objCount; i++) {
			if (document.images[pics[i][2]] != null)
			if (name != pics[i][2]) {
				document.images[pics[i][2]].src = pics[i][0].src;
			} else {
				document.images[pics[i][2]].src = pics[i][1].src;
			}
		}
	}
}
	
function off(){
	if (browserOK) {
		for (i = 0; i < objCount; i++) {
			if (document.images[pics[i][2]] != null)
			document.images[pics[i][2]].src = pics[i][0].src;
		}
	}
}