function MenuHoverIn(i) {
 	img=document.getElementById("menuhoverimg"+i);
	if(img) {
		img.style.visibility="visible";
	}
 }
 
 function MenuHoverOut(i) {
 	img=document.getElementById("menuhoverimg"+i);
	if(img) {
		img.style.visibility="hidden";
	}
}