Untitled

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pl" lang="pl">
  <head>
    <title></title>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <script type="text/javascript">
function przetworz()
{
var imie=document.getElementById("pole").value;
document.write(imie.toUpperCase()+ "<br />");
document.write(imie.toLowerCase()+ "<br />");


for (i=0;i<=imie.length; i++)
{
if (i==0)
{
document.write(imie.charAt(0).toUpperCase());
}
else
{
document.write(imie.charAt(i));
}
}


}

  </script>

  </head>
<body>

<input type="text" id="pole" />
<input type="submit" onclick="przetworz()" />


</body>
</html>