/*新闻滚动*/



$(function(){
        var $this = $(".scrollNews");
		var scrollTimer,gr;
		$this.hover(function(){
			  clearInterval(scrollTimer);
			  gr = setInterval(function(){ scrollNews( $this );}, 5000 );
		 },function(){
		 	 clearInterval(gr);
		   scrollTimer = setInterval(function(){scrollNews( $this );}, 2500 );
		}).trigger("mouseleave");
});
function scrollNews(obj){

   var $self = obj.find("ul:first"); 
   var lineHeight = $self.find("li:first").height(); //获取行高
   $self.animate({ "marginTop" : -lineHeight +"px" }, 600 , function(){
         $self.css({marginTop:0}).find("li:first").appendTo($self); //appendTo能直接移动元素
    as  = $self.find("li:first a" ).attr("title");
 	$("#tooltip").html(as);
   })
}