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

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

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		a = newImage("images/button_home_on.gif");
		b = newImage("images/button_aboutus_on.gif");
		c = newImage("images/button_products_on.gif");
		d = newImage("images/button_orderforms_on.gif");
		e = newImage("images/button_concactus_on.gif");
		preloadFlag = true;
	}
}


function viewLarge(imagebase) {
	var imagesrc = "images/" + imagebase + ".jpg";
	var windowname = imagebase + "window";
	
	window.open(imagesrc, windowname, "toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=yes, copyhistory=no, width=820, height=630, top=5, left=5");

	return false;
}