var lock=0;
menup=new Array();
for(i=1; i<=7; i++) {
	menup[i]=new Image();
	menup[i].src="images/menu_" + i + "_over.gif";
}

spacer=new Image();
spacer.src="images/spacer.gif";

function on(img) {
	document ["menu"+img].src=menup[img].src;
}

function off(img) {
	if(img!=lock) document ["menu"+img].src=spacer.src;
}

function popup(img) {
	var leftx=(screen.width-640)/2;
	var topy=0;
	loc="/foto.php?img=" + img;
	kisablak=window.open(loc,'kep_window','width=640,height=660left='+leftx+',top='+topy+',scrollbars=no');
}