function hover (on) {
	
			imgsrc = $("#shopping_cart_servicelinks a").children("img").attr("src");
			
		if (on) {
		//alert(imgsrc);
			matches = imgsrc.match(/_over/);
		
			// don't do the rollover if state is already ON
			if (!matches) {
				imgsrcON = imgsrc.replace(/.gif$/ig,"_over.gif"); // strip off extension
			
				$("#shopping_cart_servicelinks a").children("img").attr("src", imgsrcON);
			}
		} else {
			matches = imgsrc.match(/_over/);

			if (matches) {
				imgsrcOFF = imgsrc.replace(/_over.gif$/ig,".gif"); // strip off extension
				$("#shopping_cart_servicelinks a").children("img").attr("src", imgsrcOFF);
			}
		}
	}