function WindowOpenUp(sURL){
	window.open(sURL,null,'height=560,width=820,status=yes,toolbar=yes,menubar=yes,location=yes,resizable=yes,scrollbars=yes',false);
}






	
if (document.images) {	
	
img1on=new Image;
img1on.src="siteart/back_on.jpg";
img2on=new Image;
img2on.src="siteart/forward_on.jpg";
	
img1off=new Image;
img1off.src="siteart/back_off.jpg";
img2off=new Image;
img2off.src="siteart/forward_off.jpg";
	
//Add additional images here.
	
}

//function to turn images on.
function imgOn (img1) {
	if (document.images) {
		document [img1].src = eval (img1 + "on.src");
	}
}
	
//function to turn images off.
function imgOff (img1) {
	if (document.images) {
		document [img1].src = eval (img1 + "off.src");
	}
}