HI, HE IS MY FORM, I WOULD LIKE TO THE PHP CODE TO : DISPLY A MESSAGE IF THE ONE FIELD OR OTHER IS EMPTY,
<form id="form1" name="form1" method="post" action="form.php">
<label>
NAME:
<input type="text" name="name" id="name" />
</label>
<p>
Address:
<label>
<input type="text" name="address" id="address" />
</label>
</p>
</form>
THANK YOU VERY MUCH