isset on form submission not working!

[mcmuney]

I've tried both of these methods, but neither are working. The if statement fails every time.

 

if(isset($_POST['submit'])){

if(isset($submit)){

 

This is the form:

 

          <form id="form1" name="form1" method="post" action="join.php">
            <label><span>
              <input name="email" type="text" class="keywords" id="textfield" maxlength="50" value="Join my mailing list..." onclick="make_blank();" />
              </span>
              <input name="submit" type="image" src="images/search.gif" class="button" onclick="return checkmail(this.form.email);"/>
            </label>
          </form>

[harristweed]

Possibly because submit does not have a value.

Try:

<input name="submit" type="image" value="submit" src="images/search.gif" class="button" onclick="return checkmail(this.form.email);"/>