// Preload career images
if (document.images) {
	img201 = new Image(250, 209);
	img202 = new Image(275, 209);	
	img203 = new Image(275, 209);
	img204 = new Image(569, 426);
	img201.src = "Images/careers_01.jpg"
	img202.src = "Images/careers_02.jpg"
	img203.src = "Images/careers_03.jpg"
	img204.src = "Images/books.jpg"
}