function show(imgname, text, root_position) {
	var scrollY;
	scrollY = document.documentElement.scrollTop;	
	if(scrollY==0)	scrollY = window.document.body.scrollTop;
	poloha_left=(self.screen.width-640)/2;
	poloha_top=scrollY;
	document.getElementById('detailwin').style.display = 'block';
	document.getElementById('detailwin').style.backgroundImage = 'url('+root_position+'userfiles/'+imgname+')';
	document.getElementById('detailwin').style.left = poloha_left+'px';
	document.getElementById('detailwin').style.top = 70+poloha_top+'px';
	document.getElementById('detailwintext').value=text;

}

	function hide() {
	document.getElementById('detailwin').style.display = 'none';  
}