How to keep expanded after clicking submit button?

Hello! I have a search form with several checkboxes as search options inside [expand][/expand]. See below:

<form action="" method="get">
<input type="text" name="search" value="">
<input type="submit" class="pods-form-filters-submit" value="Search">
[expand title="Search Options:"]
<input type="checkbox" name="title" checked="checked">
	<label for="title">Title</label>
<input type="checkbox" name="author">
	<label for="author">Author</label>
[/expand]</form>

If the collapse-o-matic is still expanded before clicking the submit button, how do I keep it remain expanded when the page refreshes with the search results?

Can I reference it using if and else in php? Please help.

http://ww.wp.xz.cn/plugins/jquery-collapse-o-matic/