hi all im attempting to add a time countdown on a page and or form for a members meet script where a member can be added to a submitted listings page for say 3 hours to show there availability how would i make this work where the user will automatically be removed from list after that time here is the form that ive done ready
<form action="" method="post">
Hours to be on list:
<select name="hours">
<option value="1">1</option>
<option value="3">3</option>
<option value="6">6</option>
<option value="9">9</option>
<option value="12">12</option>
</select><br>
<input value="Add Me to Meet Today" type="submit">
</form>
any help would be much appreciated
ty jan x