It scrolls to the top of the page after clicking
<p>I have this code to switch a switching button image:</p>

<pre><code>$("#invio_scatola_on, #invio_scatola_off").click(function(){
    $("#invio_scatola_off").toggle();
    $("#invio_scatola_on").toggle();
});
</code></pre>

<p>when it is executed, the browser goes to the top of the page. why?</p>
