function ukazObrazek(url) {
	if (screen.height) {
		screenY = screen.height
		screenX = screen.width
	}
	var width = 800;
	if (screenY>700) var height = 650; 
	else var height = 550;
	
	var top = ((screenY/2)-(height/2));
	var left = ((screenX/2)-(width/2));
	x = window.open(url,'','resizable=yes,status=yes,scrollbars=yes,width='+width+',height='+height+',top='+top+',left='+left+'');
	if (x) return false;
}

function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=1080,height=900,left = 100,top = 20');");
}