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) {
		navcorp_01_over = newImage("/intraimages/navcorp_01-over.jpg");
		navcorp_02_over = newImage("/intraimages/navcorp_02-over.jpg");
		navcorp_03_over = newImage("/intraimages/navcorp_03-over.jpg");
		navcorp_04_over = newImage("/intraimages/navcorp_04-over.jpg");
		navcorp_05_over = newImage("/intraimages/navcorp_05-over.jpg");
		navcorp_06_over = newImage("/intraimages/navcorp_06-over.jpg");
		preloadFlag = true;
	}
}

function popup(url)
{

	window.open(url,'_new','width=270,height=220,scrollbars=no');
	self.close;
 }