Image1 = new Image
Image1.src = "images/cases.jpg"

Image2 = new Image
Image2.src = "images/squiggles.jpg"

Image3 = new Image
Image3.src = "images/tunebuckles.jpg"

Image4 = new Image
Image4.src = "images/water.jpg"

function changeBG(theImage) {
			document.body.style.backgroundImage="url(" + theImage.getAttribute("href") + ")";
		}