function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function chg() {
	if (document.images) {
		for (var i=0; i<chg.arguments.length; i+=2) {
			document[chg.arguments[i]].src = chg.arguments[i+1];
		}
	}
}


function preloadImages() {
	if (document.images) {
		prod_01h = newImage("i/products_01h.gif");
		prod_02h = newImage("i/products_02h.gif");
		prod_03h = newImage("i/products_03h.gif");
		prod_04h = newImage("i/products_04h.gif");
		prod_05h = newImage("i/products_05h.gif");
		prod_06h = newImage("i/products_06h.gif");
	}
}