function toggle(level) {			
	try{					
		while(level.tagName.toUpperCase() != 'LI'){
			level = level.parentNode;
		}
		
		if(level.className == 'collapsed'){
			level.className = 'expanded';
		}else{
			level.className = 'collapsed';
		} 
	}catch(e){ 
		//Do Nothing
	}
	
	return false;
}