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) {
	//alert("test");
		image01_over = newImage("/images/shell/btn_prodcat_over.gif");
		image02_over = newImage("/images/shell/btn_medicare_over.gif");
		image03_over = newImage("/images/shell/btn_healthcare_over.gif");
		image04_over = newImage("/images/shell/btn_custsupport_over.gif");
		image05_over = newImage("/images/shell/btn_managedcare_over.gif");
		image06_over = newImage("/images/shell/btn_healthed_over.gif");
		image07_over = newImage("/images/shell/btn_pharmacy_over.gif");
		image08_over = newImage("/images/shell/arrw_brws_over.gif");
		image09_over = newImage("/images/shell/arrw_brws_overgray.gif");
		image777_over = newImage("/images/shell/acceptedInsurance_on.gif");
		
		
		
		preloadFlag = true;
	}
}