function AutoScroll(obj){
	
        $(obj).find("ul:first").animate({
                marginTop:"-25px"
        },500,function(){
                $(this).css({marginTop:"0px"}).find("li:first").appendTo(this);
        });
}
function getRemind() { 
	var msg1 = Ext.get('remind'); 
	      msg1.load({
	      //url: '/subjects/getRemind/'+$book+'/0/0/0',
		  url: '/get_remind.php?book='+$book+'&part=0&chapter=0&section=0&number='+Number(new Date),
		  params:'',
	      text: 'Updating...'
	    }); 
	    msg1.show(); 
	    
} 

function AutoScroll(obj){

        $(obj).find("ul:first").animate({
                marginTop:"-25px"
        },500,function(){
                $(this).css({marginTop:"0px"}).find("li:first").appendTo(this);
        });
}
function getRemindInterval(){
	getRemind();
	setInterval('AutoScroll("#scrollDiv")',5000);
}
//导航菜单
function contrl_menu(){
	var menu = document.getElementById("nav_menu");
	if(menu.style.display == 'none'  || menu.style.display=='')
	menu.style.display = 'block';
	else
	menu.style.display = 'none';
}