function sho (nazev) {
var noveokno = window.open ('show.php?im='+nazev, 'obrazek', 'width=150, innerwidth=150, height=150, innerheight=150, location=0, menubar=0, resizable=0, scrollbars=0, status=0, toolbar=0, left=0, top=0');
noveokno.document.close ();
}