Endless searchform

I’m using this code for searchform:

<form id=”searchform” method=”get” action=”/index.php”>
<div>
<input type=”text” name=”s” id=”s” size=”15″ />
<input type=”submit” value=”Search” />
</div>
</form>

But, at my site, the form is longer: http://vootatico.com. What is the problem?