How To Avoid Multiple Submit

<script type="text/javascript">
<!--
function checkForm(form)
{
//
// check form input values
//

form.SubmitButton.disabled = true;
form.SubmitButton.value = "Please wait...";
return true;
}

function resetForm(form)
{
form.SubmitButton.disabled = false;
form.SubmitButton.value = "Submit";
}
// -->
</script>
<p>This short tutorial will show you how to avoid multiple submissions from users by disabling the submit button once the form has been submitted </p>
<form method="POST" action="http://www.wallpaperama.com" onSubmit="return checkForm(this) && false;">
<p>Your Name:
<input type="text" name="textfield">
(put whatever you want) </p>
<p>Your Comments:
<textarea name="textarea"></textarea>

(put whatever you want)</p>
<p>Notice once you hit the Submit button, you will see the &quot;Submit&quot; change to &quot;Please wait...&quot; and you won't be able to submit the form again. </p>
<p>
<input type="submit" name="SubmitButton" value="Submit">
</p>

</form>
<p align="left"><a href="http://www.wallpaperama.com/forums">&lt;&lt; Go Back</a></p>
<p align="center">Example Tutorial by <a href="http://www.wallpaperama.com">wallpaperama.com</a> </p>