var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		ecolfriendOn = new Image();   ecolfriendOn.src = "/images/lightbox_ecologically_hover.jpg";
		ecolfriendOff = new Image();   ecolfriendOff.src = "/images/sidebar_ecologically.jpg";
		
		econfriendOn = new Image();   econfriendOn.src = "/images/lightbox_economically_hover.jpg";
		econfriendOff = new Image();   econfriendOff.src = "/images/sidebar_economically.jpg";
			
		superiorOn = new Image();   superiorOn.src = "/images/lightbox_superior_ink_hover.jpg";
		superiorOff = new Image();   superiorOff.src = "/images/sidebar_superior_ink.jpg";
		
		cuttingOn = new Image();   cuttingOn.src = "/images/lightbox_cutting_edge_hover.jpg";
		cuttingOff = new Image();   cuttingOff.src = "/images/sidebar_cutting_edge.jpg";	
		
		locationOn = new Image();   locationOn.src = "/images/sidebar_location_hover.gif";
		locationOff = new Image();   locationOff.src = "/images/sidebar_location.gif";

		
		preloadFlag = true;
	}
}

function imgOn(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "On.src");
	}
}

function imgOff(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "Off.src");
	}
}