How refresh page after updating a DB ?

hi
i try to make plugin to a slider
i make alredy an admin panel, and i can update the db.
but i’v a problem after i put the new data and press update – its update the db, but it not shown on the page.
i nead to refresh the admin page page and only after that i see the change.

how i can automaticly can refresh the page?
code` <h1>Slider Table</h1>
<form action=”” method=”post”>
<?php
for($i=1; $i<=5; $i++)
{
$sliderows=getSliderData($i);
echo ‘<div id=”single-slide-wrap”>
<div id=”slide-num”>
<p id=”stitle”><strong>#’.$i.'</strong></p>
<input name=”slideradio” type=”radio” value=”‘.$i.'” />
</div><!–slide-num–>
<div id=”slide-pic”>
<img alt=”” src=”‘.$sliderows[‘img’].'” style=”width: 120px; height: 80px;” />
</div><!–slide-pic–>
<div id=”slide-text”>
<strong>Img Url: </strong>’.$sliderows[‘img’].'<br />
<strong>Title: </strong>’.$sliderows[‘title’].'<br />
<strong>Url: </strong>’.$sliderows[‘url’].'<br />
</div><!–slide-text–>

</div><!–single-slide-wrap–>’;
}
?>

<h3>update Slider</h3>

IMAGE URL: <input type=”text” name=”img” />
TEXT: <input type=”text” name=”text” />
URL: <input type=”text” name=”url” />
<input type=’submit’ name=”submit” value=’update’ />
</form>

<?php

if(isset($_POST[‘submit’]))
{
if(isset($_POST[‘slideradio’]))
{
switch($_POST[‘slideradio’]) {
case ‘1’:
update_slider_db(1);
break;
case ‘2’:
update_slider_db(2);
break;
case ‘3’:
update_slider_db(3);
break;
case ‘4’:
update_slider_db(4);
break;
case ‘5’:
update_slider_db(5);
break;
}

}

}
`