#screen1 {
	position:absolute; 
	width:100%; 
	height:100%; 
	z-index:101; 
	left: 0px; 
	top: 0px; 
	background-image:url(img/transparent_screen.gif); 
	display:none;
}
#vok1 {
	position:absolute; 
	width:300px; 
	height:300px; 
	z-index:110; 
	left: 200px; 
	top: 150px; 
	display: none;
}