/**
 * @author LiChaoping
 */
 function nav(body_id,menu_selected_class,content_selected_class){
	try{
	Ext.get(body_id).on({
		mouseover:function(ev){
			var node = ev.getTarget('li[index]');
			if(node){
				Ext.fly(node).radioClass(menu_selected_class);
				Ext.fly(body_id+'-'+node.getAttribute('index')).radioClass(content_selected_class);
			}
		}
	}); }catch(e){}	
 }
 
 Ext.onReady(function(){
 	nav('hot-news','first','selected');
 	nav('baby-health','first','selected');
 	nav('baby-album','first','selected');
 	nav('baby-work','first','selected');
 	nav('happy_body','first','selected');
 	nav('school_video','first','selected');
 	nav('teacher_resource','first','selected');
 	nav('baby-show','first','selected');
 	nav('recommend-baby','first','selected');
 	nav('baby-blog','first','selected');
 	nav('baby-brains','first','selected');
 });