function swapimg(placeholder, imageObject){ 
		if (document.images){
			document.images[placeholder].src = eval( imageObject + ".src" )
				}
		}
	

	img1 = new Image
	img1.src = "img/home_on.jpg"
	img1_off = new Image
	img1_off.src = "img/home_off.jpg"
	img2 = new Image
	img2.src = "img/gallery_on.jpg"
	img2_off = new Image
	img2_off.src = "img/gallery_off.jpg"
	img3 = new Image
	img3.src = "img/articles_on.jpg"
	img3_off = new Image
	img3_off.src = "img/articles_off.jpg"
	img4 = new Image
	img4.src = "img/links_on.jpg"
	img4_off = new Image
	img4_off.src = "img/links_off.jpg"

	function message(text){
	window.status = text;
	}