Open/close contact owner form with accordion functionality

C68 version: v4.2.1 Developer, template Sigma

Hello,

I try to add accordion fuctionality to the contact owner form in contactowner.tpl so that it is closed untill a visitor wants to contact the advertiser of the listing.
I have used the same functionality as in the accordion.tpl and this works partly because now also the left menu (accordion) open/close if I click to open the contact owner form link.
I have tried to modify layout.js without succes.
Is it possible to use multiple accordion functionality at one site page?

Who can give me some direction/hint?

Thank you in advance

Solved! Not used the accordion but toggle Jquery functionality and Javascript
See below:

Code:

<h3 id="expanderHead" style="cursor:pointer;">
	<span id="expanderSign">+</span> {$smarty.const.LANG_DIRECT_CONTACT_OWNER}
</h3>
<div id="expanderContent" style="display:none">
<form >
 Your form
</form>
<!-- End Contact Form -->
</div>
{literal}
<script type="text/javascript">
$(document).ready(function(){
	$("#expanderHead").click(function(){
		$("#expanderContent").slideToggle();
		if ($("#expanderSign").text() == "+"){
			$("#expanderSign").html("−")
		}
		else {
			$("#expanderSign").text("+")
		}
	});
});
</script>
{/literal}