function openwin(url,name) {
  var height = 600;
  var width = 800;
  var str = "height=" + height + ",innerHeight=" + height;
  str += ",width=" + width + ",innerWidth=" + width;
  if (window.screen) {
    var ah = screen.availHeight - 30;
    var aw = screen.availWidth - 10;
    var xc = Math.floor((aw - width) / 2);
    var yc = Math.floor((ah - height) / 2);
    str += ",left=" + xc + ",screenX=" + xc;
    str += ",top=" + yc + ",screenY=" + yc;
  }
  str += ",directories=0,location=0,menubar=1,personalbar=1,scrollbars=1,status=1,toolbar=1";
  return window.open(url,name,str);
}

function Form_Validatore(theForm)
{
//---------------------------------------------------------------------
if (theForm.jmeno.value == "")
	{
		alert("Je třeba vyplnit jméno !");
		theForm.jmeno.focus();
		return (false);
	}
//---------------------------------------------------------------------
if (theForm.prijmeni.value == "")
	{
		alert("Je třeba vyplnit příjmení !");
		theForm.prijmeni.focus();
		return (false);
	}
//---------------------------------------------------------------------
if (theForm.psc.value == "")
	{
		alert("Je třeba vyplnit PSČ !");
		theForm.psc.focus();
		return (false);
	}
//---------------------------------------------------------------------
if (theForm.mesto.value == "")
	{
		alert("Je třeba vyplnit město !");
		theForm.mesto.focus();
		return (false);
	}
//---------------------------------------------------------------------
if (theForm.tel.value == "")
	{
		alert("Je třeba vyplnit telefon !");
		theForm.tel.focus();
		return (false);
	}
//---------------------------------------------------------------------
return (true);
}