MyBB Community Forums

<span style="float: right">
<form method="post" action="{$mybb->settings['bburl']}/search.php">

<input type="hidden" name="action" value="do_search" />

<input type="hidden" name="postthread" value="1" />

<input type="hidden" name="forums" value="all" />

<input type="hidden" name="showresults" value="threads" />

<input type="text" name="keywords" value="Search..."
onfocus="if(this.value == 'Search...') { this.value = ''; }"
onblur="if(this.value=='') { this.value='Search...'; }" class="textbox"
size="25" />

<input type="submit" class="button" value="Go" />

</form>
</span>

i add that codes in (Home » Template Sets»Index Page Templates» index)