Form to add multiple records to MySql

Hi,

I have an html form that has 10 text field for trhe user too enter dates into. When the user clicks the submit button each text field should be added as a new record to a mysql table. 

The way I have it now if only 2 are filled in, rateher than making only 2 entries with the post data, it makes 20: the 2 that should be there and 8 empty ones, then repeats this, making 20. 

Can anyone offer assistance?

Here is my code as it stands.

<form class='form1' action='appointmentaddform.php' method='post' enctype='multipart/form-data' name='add_news-form' id='add_news_form'>
 <p><b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[0]' /><br />   <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[1]' /><br />
 <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[2]' /><br />      <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[3]' /><br />
 <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[4]' /><br />
 <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[5]' /><br />
 <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[6]' /><br />
 <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[7]' /><br />      <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[8]' /><br />
 <b><span class='text'>Date + Time<span></b> <input type=text size='50' name='adate[9]' /></p>
 <br />
 <input type='submit' id='submit' name='submit' value='Add Appointments' />
 <input type='hidden' value='new' />
 </form>
				  
<?php
   include '../inc/connect.php';
   if (isset($_POST['submit'])){
      while(!empty($_REQUEST['adate'])){					   
         foreach($_REQUEST['adate'] as $adate ){
            mysql_query("INSERT INTO appointments  VALUES ('', '$adate')");
         }
      }
   }
?>

Thanks