function toggleback(){
	items = document.getElementsByTagName('li');
	for(i=0;i<items.length;i++){
		if(items[i].className == 'active'){
			items[i].className='menuitem';
		}
	}
}

function change(id, newClass) {
	if (document.getElementsByTagName){
		toggleback();
		identity=document.getElementById(id);
		identity.className=newClass;
	}
}