function openWindowPICTURE(pic)
{
     window.open(pic, "img",'toolbar=0,location=0,scrollbars=0, resizable=yes, width=300,height=300');
}

/* overeni vyplneni formulare */
function checkit (theForm)
{
if (theForm.jmeno.value == "")
  {
    alert("Prosím vyplňte políčko \"Jméno a Příjmení\".");
    theForm.jmeno.focus();
    return (false);
  }
if (theForm.telefon.value == "")
 {
    alert("Prosím vyplňte políčko \"Telefon\".");
    theForm.telefon.focus();
    return (false);
 }
if (theForm.email.value == "")
 {
    alert("Prosím vyplňte políčko \"E-mail\".");
    theForm.email.focus();
    return (false);
 }


return (true);
}	
	
	




function newWindow(mypage,myname,w,h,features) {
  if(screen.width){
  var winl = (screen.width-w)/2;
  var wint = (screen.height-h)/2;
  }else{winl = 0;wint =0;}
  if (winl < 0) winl = 0;
  if (wint < 0) wint = 0;
  var settings = 'height=' + h + ',';
  settings += 'width=' + w + ',';
  settings += 'top=' + wint + ',';
  settings += 'left=' + winl + ',';
  settings += features;
  win = window.open(mypage,myname,settings);
  win.window.focus();
}