function Swap(x,y)
{
	document.images[x].src=eval(y+'.src')
}


/**
 *	ukryje popisek u fotky
 */
function HideFotoDescription()
{
    document.getElementById('id_div_foto_popisek').style.display='none';
}


/**
 *	otevira nove okno dle zadanych parametru, upravuje velikost, zarovnava na stred
 */
function Okno(url, winName, width, height)
{
    okno =  window.open(url, winName, 'toolbar=no,location=no,directories=no,status=no,scrollbars=no,width=' + width +',height=' + height);
    okno.focus();
    var locX = (screen.width/2)-(width/2);
    var locY = (screen.height/2)-(height/2);
    okno.moveTo(locX,locY);
    okno.resizeTo(width,height);
}