if (document.images)
		{
		moveon = new Image(); moveon.src = "images/move_on.gif";
		moveoff = new Image(); moveoff.src = "images/move_off.gif";
		projecton = new Image(); projecton.src = "images/project_on.gif";
		projectoff = new Image(); projectoff.src = "images/project_off.gif";
		furnitureon = new Image(); furnitureon.src = "images/furniture_on.gif";
		furnitureoff = new Image(); furnitureoff.src = "images/furniture_off.gif";
		serviceson = new Image(); serviceson.src = "images/services_on.gif";
		servicesoff = new Image(); servicesoff.src = "images/services_off.gif";
		abouton = new Image(); abouton.src = "images/about_on.gif";
		aboutoff = new Image(); aboutoff.src = "images/about_off.gif";
		contacton = new Image(); contacton.src = "images/contact_on.gif";
		contactoff = new Image(); contactoff.src = "images/contact_off.gif";
		}

		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");
		}
		}