BUTTON CLICK CREATE DIV AND PASSWORD TEXTBOX CONTROL

< Script >
function DivWindow()
    {
    var StrHtml;
    StrHtml="
";
    StrHtml=StrHtml+" Password : ";
    StrHtml=StrHtml+"
";
    document.write (StrHtml);
    alert(document.getElementById("test").value);
    }
  </script >
< input type="button" value ="ClickHere"  onclick="DivWindow();"/ >