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) {
		health_overlay_01_ImageMap_01_over = newImage("http://www.hlthss.gov.nt.ca/images/health_overlay_01-ImageMap_.jpg");
		health_overlay_01_ImageMap_02_over = newImage("http://www.hlthss.gov.nt.ca/images/health_overlay_01-ImageM-03.jpg");
		vital_statistics_01_ImageMap_01_over = newImage("http://www.hlthss.gov.nt.ca/images/other/vital_statistics_01-ImageMa.gif");
		professional_licensing_01_ImageMap_01_over = newImage("http://www.hlthss.gov.nt.ca/images/other/professional_licensing_01-I.gif");
		benefits_01_ImageMap_01_over = newImage("http://www.hlthss.gov.nt.ca/images/health_care_card_01-healthc.jpg");
		benefits_01_over = newImage("http://www.hlthss.gov.nt.ca/images/health_care_card_01-healthc.jpg");
		telecare_nwt_01_ImageMap_01_over = newImage("http://www.hlthss.gov.nt.ca/images/health_line_hover.jpg");		
		food_safety_over = newImage("http://www.hlthss.gov.nt.ca/images/other/food_safety_over.gif");
		preloadFlag = true;
	}
}