function displayMembership(status,sub_category_id){

	if (status!=0){	
		var msg="You're a member of this community!";
		msg+="<br>Manage membership <a href='../account/edit.php?page=communities'>here</a>.";
	}else{
		var msg="Be a member of this community!<br><br>";
		msg+="<button class='btn' onClick='setMembership("+sub_category_id+");'>";
		msg+="add to your interest list";
		msg+="</button>";
	}
	$('membership').innerHTML=msg;

}

function setMembership(id){

	formData="join_id="+id;

	$('membership').innerHTML="<p align='center'><img src='/skins/www.if.net/assets/indicator.gif' border='0' width='16' height='16'></p>";

	var options={
		method:"get",
		onFailure:function(transport){
			$('membership').innerHTML="<p align=center>"+transport.responseText+"</p>";
		},
		onSuccess:function(transport){
			displayMembership(id);
		},
		parameters:formData
	}

	new Ajax.Request('../account/join_community.php',options);

}