function show_hide(id,class_name){
	if (document.getElementById(id).className == 'nodisp'){
		if(id=='member_dropdown_list'){
					document.getElementById('member_dropdown').className = 'member_dropdown member_dropdown_open';
		}
		document.getElementById(id).className = class_name;
		}else{
		if(id=='member_dropdown_list'){
					document.getElementById('member_dropdown').className = 'member_dropdown';
		}
		document.getElementById(id).className = 'nodisp';
	}
}