[RESOLVED] remember check box selections...

PHP Code:

---

<form method="post"> 
    <input type="checkbox" name="size[]" value="m">
             <input type="checkbox" name="size[]" value="l">
             <input type="checkbox" name="size[]" value="xl">
             <input type="submit" name="go" value"Submit This"> <strong>Tomato Margherita - </strong> fresh tomato, olive oil, fresh basil, oregano and mozzarella<br>
                <?if ($go and $HTTP_POST_VARS['size']){
                //$size = $HTTP_POST_VARS['size'];
                //echo $size[1];
                foreach ($size as $f) {
                echo $f."<br />";
                }                
                } ?>

---

when this is submitted it displays the correct info, but does not maintain the checked boxes...
here is the site
http://www.questfor3d.com/phptest/FoodOrder.php

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PHP Code:

---

            <form method="POST"> 
                <? if ($_POST['size1']) {?>
                    <input type="checkbox" name="size1" value="m" checked>
                <?} else { ?>
                    <input type="checkbox" name="size1" value="m">
                <?}?>
                <? if ($_POST['size2']) {?>
                    <input type="checkbox" name="size2" value="l" checked>
                <?} else { ?>
                    <input type="checkbox" name="size2" value="l">
                <?}?>
                <? if ($_POST['size3']) {?>
                    <input type="checkbox" name="size3" value="xl" checked>
                <?} else { ?>
                    <input type="checkbox" name="size3" value="xl">
                <?}?>

---

<input type="checkbox" name="size1" value="m"<?=$_POST['size1'] ? ' checked="checked"' : ''>