<script language="JavaScript">
      var checkflag = "false";
      function check(field) {
         if (checkflag == "false") {
            for (i = 0; i < field.length; i++) {
               field[i].checked = true;}
            checkflag = "true";
            return " keine"; }
         else {
            for (i = 0; i < field.length; i++) {
               field[i].checked = false; }
            checkflag = "false";
            return " alle"; }
      }

      function edname(button) {
         if(button.value=="Alle") {
            button.value="Keine";
         } else {
            button.value="Alle";
         }
      }
</script>

<?php
$anzahl_array =  count($_POST['deleteid']);
$f = "0";


        if ($_POST['submit']=="löschen")
        {
            while ($anzahl_array > $f)
            {
                echo 'lösche mail mit der id ' . $_POST['deleteid'][$f] . '<br>';
                $f++;
            }

        } else {

echo "
<form name='view' action='checkall.php' method='post'>
   <input name='button1' type='button' onClick="this.value=check(document.view.elements['deleteid[]']); edname(document.view.elements['button2']);" value='Alle'><br><br>
   <input type='checkbox' name='deleteid[]' value='1'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='2'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='3'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='4'>checkbox<br>

   <input type='checkbox' name='deleteid[]' value='5'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='6'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='7'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='8'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='9'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='10'>checkbox<br>

   <input type='checkbox' name='deleteid[]' value='11'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='12'>checkbox<br>
   <input type='checkbox' name='deleteid[]' value='13'>checkbox<br><br>
   <input name='button2' type='button' onClick="this.value=check(document.view.elements['deleteid[]']); edname(document.view.elements['button1']);" value='Alle'>
   <br><input type='submit' name='submit' value='löschen'>
</form>";

            
        }


?>
<br><br><br>Aufrufen kannste das Array mit den Daten dann so: $_POST['deleteid'][<zahl>]