What's wrong in my code

I'm trying to use the if_home function inside our header.php file for a wordpress website. But its giving me problem. What may be the reason?

The code

<?php if (is_home() ) {
<div id="optinsect">
<div id="opt-in">
} ?>
</div></div>

Thanks in advance

Ok. Great. I figured this out..

<?php if ( is_home() ) { ?>
<div id="optinsect">
<div id="opt-in">
<!-- html goes here -->
</div></div>
<?php } ?>

 

be sure that is_home() returns true or false. else i can't see a problem in this piece of code.