window.addEvent('domready', function(){

	var coll = new CollapseMe();
	
	coll.setUnchecked('chk1');
	coll.setUnchecked('chk2');
	coll.setUnchecked('chk3');
	
	coll.setClosed('lang-1');
	coll.setClosed('lang-2');
	coll.setClosed('lang-3');
	
	
	$('chk1').addEvent('click', function(){
		coll.collapseMe('lang-2');
		coll.collapseMe('lang-3');
		coll.toggle('lang-1');
	});
	
	$('chk2').addEvent('click', function(){
		coll.collapseMe('lang-1');
		coll.collapseMe('lang-3');
		coll.toggle('lang-2');
	});
	
	$('chk3').addEvent('click', function(){
		coll.collapseMe('lang-1');
		coll.collapseMe('lang-2');
		coll.toggle('lang-3');
	});
	
});