function newImage(arg) {
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		rslt.src = arg;
		return rslt;
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}

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

var preloadFlag = false;
function preloadImages() {
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		Air_over = newImage("images/Air-over.gif");
		Compaction_over = newImage("images/Compaction-over.gif");
		Concrete_over = newImage("images/Concrete-over.gif");
		Dirt_over = newImage("images/Dirt-over.gif");
		Electric_over = newImage("images/Electric-over.gif");
		Forklifts_over = newImage("images/Forklifts-over.gif");
		Generators_over = newImage("images/Generators-over.gif");
		Pumps_over = newImage("images/Pumps-over.gif");
		Welding_over = newImage("images/Welding-over.gif");
		Water_over = newImage("images/Water-over.gif");
		mnuAbout_over = newImage("images/mnuAbout-over.gif");
		mnuHistory_mnuRental_over = newImage("images/mnuHistory-SunstateEq.gif");
		mnuHistory_over = newImage("images/mnuHistory-over.gif");
		mnuRental_over = newImage("images/mnuRental-over.gif");
		mnuApplications_over = newImage("images/mnuApplications-over.gif");
		mnuApplications_mnuAccount_over = newImage("images/mnuApplications-SunstateEq.gif");
		mnuAccount_over = newImage("images/mnuAccount-over.gif");
		mnuLocations_over = newImage("images/mnuLocations-over.gif");
		mnuCareers_mnuLocations_over = newImage("images/mnuCareers-SunstateEq.gif");
		mnuCareers_over = newImage("images/mnuCareers-over.gif");
		SunstateEquip_54_mnuLogos_over = newImage("images/SunstateEquip_54-SunstateEq.gif");
		mnuLogos_over = newImage("images/mnuLogos-over.gif");
		mnuContact_over = newImage("images/mnuContact-over.gif");
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}