<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1250">
<script language="JavaScript">
<!-------------

function HideIt() {
        document.getElementById('required').style.visibility= "hidden";
        document.getElementById('requiredtext').style.visibility= "hidden";
}

function CheckEmptyField( theField, theMessage ) {
   if( theField.value=="" ) {
      theField.focus();
      if(document.getElementById) {
        document.getElementById('required').style.visibility= "visible";
        document.getElementById('requiredtext').style.visibility= "visible";
        document.getElementById('requiredtext').innerHTML= theMessage;
        setTimeout( "HideIt()",1500);
      } else {
          alert(theMessage);
      }
      return false;
   } else {
      return true;
   }
}

function Validate(theForm) {
  if( !CheckEmptyField(theForm.name,"Vyplňte prosím pole jméno.") ) return false;
  if( !CheckEmptyField(theForm.surname,"Vyplňte prosím pole příjmení.") ) return false;
  if( !CheckEmptyField(theForm.email,"Vyplňte prosím pole e-mail.") ) return false;

  // uspech
  return true;
}

//-------------->
</script>

<title>Kontrola formuláře s obrázky</title>
</head>

<body bgcolor="#9DCEFF" text="#000000">

<h2 align="left">Kontrola formuláře s obrázky</h2>

<form method="POST" onSubmit="return Validate(this);">
<table border="0" cellpadding="0"
  cellspacing="0" width="400" height="124">
    <tr>
      <td height="25">Jméno:</td>
      <td height="25"><input type="text" name="name" size="20"><font color="#FF0000">*</font></td>
    </tr>
    <tr>
      <td height="25">Příjmení:</td>
      <td height="25"><input type="text" name="surname" size="20"><font color="#FF0000">*</font></td>
    </tr>
    <tr>
      <td height="25">E-mail:</td>
      <td height="25"><input type="text" name="email" size="20"><font color="#FF0000">*</font></td>
    </tr>
    <tr>
      <td height="22">Počet vlasů:</td>
      <td height="22"><input type="text" name="hair_count" size="9"></td>
    </tr>
    <tr>
      <td height="27">&nbsp; </td>
      <td height="27"><input type="submit" value="Submit" name="B1"></td>
    </tr>
    <tr>
      <td height="27"></td>
      <td height="27"><small>Poznámka: hvězdička <font color="#FF0000">*</font> značí
      povinné pole.</small></td>
    </tr>
  </table>
</form>
<script language="JavaScript"><!-------------

if(document.getElementById) {
  document.write('<img ID="required" STYLE="visibility:hidden; position:absolute; left:300; top:120" src="required.gif">');
  document.write('<p ID="requiredtext" STYLE="visibility:hidden; position:absolute; left:365; top:155" >abc</p>');
}

//-----------></script>

</body>
</html>