<script language="JavaScript">
<!--
function Tecla(){
window.status = String.fromCharCode(event.keyCode);
if (event.keyCode == 13)
{
window.event.keyCode = 9;
}
}
//-->
</script>
<form id="form1" name="form1" method="post" action="" onKeyDown="Tecla()">
<input type="text" name="textfield2" />
<select name="select">
<option value="2">2</option>
<option value="2">2</option>
<option value="2">2</option>
</select>
<select name="select2">
<option value="5">5</option>
<option value="6">6</option>
<option value="8">7</option>
</select>
<input type="text" name="textfield" />
</form>
