var strQueryString;
strQueryString = '';

function slika(id, width, height)
{
  var scrnwdth = 0;
  var scrnhght = 0;
  var wdth = width; 
  var hght = height;
  var lft;
  var tp;
  
  hght = parseInt(hght) + 20;
  
  if((window.screen) && (screen.width) && (screen.height)) {scrnwdth = screen.width; scrnhght = screen.height;}
  if(scrnwdth != 0) lft = (scrnwdth - wdth)/2;
  if(scrnhght != 0) tp = (scrnhght - hght)/2;
  var slika = null;
  slika = window.open('slike.php?slika=' + id, 'sodelovanjewnd', 'width=' + wdth + ',height=' + hght + ',left=' + lft + ',top=' + tp + ',screenX=' + lft + ',screenY=' + tp + ',menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=no');
  if (slika.blur) slika.focus();
}

function printframe()
{
  parent.frame_print_bottom.focus();
  parent.frame_print_bottom.print();
}

function printpreview()
{
  var scrnwdth = 0;
  var scrnhght = 0;
  var wdth = 640;
  var hght = 450;
  var lft;
  var tp;
  if((window.screen) && (screen.width) && (screen.height)) {scrnwdth = screen.width; scrnhght = screen.height;}
  if(scrnwdth != 0) lft = (scrnwdth - wdth)/2;
  if(scrnhght != 0) tp = (scrnhght - hght)/2;
  var prn = null;
  prn = window.open('frameset_print.php?printText=' + location.protocol + '//' + location.host + location.pathname + '?blnPrint=true' + strQueryString, 'prnwnd', 'width=' + wdth + ',height=' + hght + ',left=' + lft + ',top=' + tp + ',screenX=' + lft + ',screenY=' + tp + ',menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=yes');
  if (prn.blur) prn.focus();
}

function isEmpty(besedilo, msg)
{
  if (besedilo.value.length == 0)
  {
	alert(msg)
	besedilo.focus()
	return false
  } 
  return true
}