function hledat() {
	document.getElementById('hledej-form').submit();
}

function wopen(wlink, w, h) {
// okno bude vzdy pro obrazek 500x500
	h+=50;
	scrollbar='no';
	if (w>900) {w=900; scrollbar='yes';}
	if (w<400) {w=400;}
	if (h>730) {h=730; scrollbar='yes';}
	if (h<400) {h=400;}
  xx=(screen.availWidth-w)/2;
  yy=(screen.availHeight-30-h)/2;
  if (xx<1) xx=0;
  if (yy<1) yy=0;
	param="location=no, menubar=no, personalbar=no, status=no, toolbar=no, resizable=yes, scrollbars="+scrollbar;
  okno=window.open("image-large.php?p="+wlink, "mg"+Math.floor(Math.random()*1000000), param+", width="+w+", height="+h+", left="+xx+", top="+yy);
}