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 zkontroluj_email(adresa) {
  re = /^[^.]+(\.[^.]+)*@([^.]+[.])+[a-z]{2,3}$/;
  return adresa.search(re) == 0;
}



function Form_Validatore(theForm) {// vsechny udaje 


	
	
	if (!zkontroluj_email(theForm.textfield2.value)) {
  		theForm.textfield2.style.backgroundColor = "#FFD1D1";
			alert("Nevyplnily jste správně svůj kontaktní e-mail");
			theForm.textfield2.focus();
			return (false);
		}
		
	if (!theForm.textfield3.value) {
			theForm.textfield3.style.backgroundColor = "#FFD1D1";
			alert("Nevyplnily jste místo realizace");
			theForm.textfield3.focus();
			return (false);
		}
	return (true);
}