img1on = new Image();
	img1on.src = "http://www.rentshark.ca/images/jobshark_on.gif";
	
	img1off = new Image();
	img1off.src = "http://www.rentshark.ca/images/jobshark_off.gif";
	
	img2on = new Image();
	img2on.src = "http://www.rentshark.ca/images/rentshark_on.gif";
	
	img2off = new Image();
	img2off.src = "http://www.rentshark.ca/images/rentshark_off.gif";
	
	img3on = new Image();
	img3on.src = "http://www.rentshark.ca/images/homeshark_on.gif";
	
	img3off = new Image();
	img3off.src = "http://www.rentshark.ca/images/homeshark_off.gif";
	
	img4on = new Image();
	img4on.src = "http://www.rentshark.ca/images/advertisers_on.gif";	
	
	img4off = new Image();
	img4off.src = "http://www.rentshark.ca/images/advertisers_off.gif";	

	function img_on(imgName) {
    imgOn = eval( imgName + "on.src");
    document [imgName].src = imgOn;
	}
	
	function img_off(imgName) {
	imgOff = eval( imgName + "off.src");
	document [imgName].src = imgOff;
	}