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

function changeImages() {
	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) {
/* Preload main Nav */
		home_over = newImage("images/home_over.jpg" );
		overview_over = newImage("images/overview_over.jpg" );
		enclosure_over = newImage("images/enclosure_over.jpg" );
/* Preload Enclisure Prods SubNav  */
			fabric_over = newImage("images/fabricCases_over.jpg" );
/* Preload 3rd level Nav */
				thermalFormed_over = newImage("images/thermalFormed_over.jpg" );
				nylon_over = newImage("images/nylon_over.jpg" );
				neoprene_over = newImage("images/neoprene_over.jpg" );
				PVC_over = newImage("images/PVC_over.jpg" );
				vinyl_over = newImage("images/vinyl_over.jpg" );
				leather_over = newImage("images/leather_over.jpg" );
			plastic_over = newImage("images/plasticCases_over.jpg" );
			metal_over = newImage("images/metalCases_over.jpg" );
		powerSystems_over = newImage("images/powerSystems_over.jpg" );
/* Preload Power systems SubNav */
			batteryChargers_over = newImage("images/batteryChargers_over.jpg" );
			batteryPacks_over = newImage("images/batteryPacks_over.jpg" );
			powerSupplies_over = newImage("images/powerSupplies_over.jpg" );
			systemInteg_over = newImage("images/systemInteg_over.jpg" );
		reps_over = newImage("images/reps_over.jpg" );
		contact_over = newImage("images/contact_over.jpg" );

		preloadFlag = true;
	}
}