function gal_otevri(kam)
{
 var msg = window.open(kam, 'Zobrazit', 'resizable=no,top=0,left=0,menubar=0,width=400,height=400,scrollbars=0,status=0')
}

function gal_zavri_okno()
{
 var msg = window.close()
}

function gal_obr()
{

if((document.getElementById('obr').width) > (document.getElementById('obr').height))
{
  var width = document.getElementById('obr').width + 37;
  var height = document.getElementById('obr').height + 80;
  window.resizeTo(width, height); 
} else {
  var width = document.getElementById('obr').width + 37;
  var height = document.getElementById('obr').height + 80;
  window.resizeTo(width, height); 
}

}