document.write("<div id='loading'>Načítám pozadí...</div>");

document.write("<img id='bgpicture' src='/index/pozadi.jpg' height='1' width='1' style='visibility: hidden;' onload=\"document.getElementById('loading').style.display = 'none';\">");

/*document.getElementById('bgpicture').onload = document.getElementById('loading').style.display = 'none';*/
/*
setTimeout("document.getElementById('loading').style.display = 'none';", 5000);
*/