submit onChange not working

[BillyMako]

Why isn't this working????

 

Echo '
<form action="show.php" method="post" onChange="this.form.submit()">
<select>
<option value selected>select</option>
<option value="1">1</option>
<option value="2">2</option>
</select>
</form> ';

[The Little Guy]

Try this:

Echo '
<form action="show.php" method="post">
<select onChange="this.form.submit()">
<option value selected>select</option>
<option value="1">1</option>
<option value="2">2</option>
</select>
</form> ';

[JasonLewis]

The form tag does not allow the onchange event handler.