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) {
		temp_011_header_07_over = newImage("images/temp_011_header_07-over.jpg");
		temp_011_header_10_over = newImage("images/temp_011_header_10-over.jpg");
		temp_011_header_11_over = newImage("images/temp_011_header_11-over.jpg");
		temp_011_header_12_over = newImage("images/temp_011_header_12-over.jpg");
		alumni_register_01_over = newImage("images/alumni_register_01-over.jpg");
		temp_011_header3_07_over = newImage("images/temp_011_header3_07-over.jpg");
		temp_011_header3_10_over = newImage("images/temp_011_header3_10-over.jpg");
		temp_011_header3_11_over = newImage("images/temp_011_header3_11-over.jpg");
		temp_011_header3_12_over = newImage("images/temp_011_header3_12-over.jpg");
		preloadFlag = true;
	}
}