function is_modern_browser(  )
{
  var nav_name = navigator.appName;
  if ( nav_name == "Microsoft Internet Explorer" || nav_name == "Opera" || ( navigator.userAgent.indexOf("Firefox/2") != -1 ) )
   return 1;
  else
   return 0;
}



function resize_window(  )
{
  //return;
  var datablock = window.document.getElementById( "datablock" );
  var vyska = 65;
  var sirka = 60;
  
  if ( datablock )
   {
    vyska = vyska + datablock.clientHeight;
    sirka = sirka + datablock.clientWidth;
   }

  if ( vyska > ( screen.availHeight - 75 ) )
   vyska =  screen.availHeight - 75; // -75 je cca vyska toolbaru v IE

  if ( datablock && is_modern_browser( ) )
    window.resizeTo( sirka, vyska );
}



function UpdateParentWindow ()
{
	//var parent_href = window.opener.location.href;
	window.opener.location.reload(true);
}



function okno( height, width, cil )
{ var w;
  w=window.open ( "", cil, "toolbar=n,left=450,height="+height+",width="+width+",resizable=1,scrollbars=1" );
  w.focus();
}