how to show a textarea when user choose "YES" from a select tag. Thanks

[erictran]

Hi all,

Could someone help with the follwing problem?
I am new and trying to create a webpage in PHP where I have a form and inside the form I have a select tag with 2 options which are "YES" and "NO".

1. suppose user choose "YES" then a image (doesn't appear before) suppose
   to appear on a same page and right below the select tag.

2. If the user select "NO" then a Text Area (doesn't appear before) appear
   below the select tag and on the same page.

Any help with a details reply would greately appreciated.

Regards,

Eric.

[bretticus]

how bout...

<form method="post" action="<?=$_SERVER['PHP_SELF']?>">
  <table width="100%" border="0" cellspacing="0" cellpadding="1">
    <tr>
      <td>
        <select name="select" onchange="this.form.submit()">
          <option>yes</option>
          <option>no</option>
        </select>
      </td>
    </tr>
  </table>
  <? 
  if ($_POST['select']=='yes') {
	echo "<img src=\"image.jpg\" width=\"13\" height=\"10\">";
  } else {
	echo "<textarea name=\"textfield\"></textarea>";
  }
  ?>