//校内公告向左滚动
function marquee(){
	//向左卷动
	var objID=jQuery('#home_notice').find("ul")
	if(leftPos+dis<0){
		leftPos=0;
	}else{
		leftPos--;
	}
	objID.css("left",leftPos+'px');
}

var leftPos=0;	//左边定位
var scrollObj=jQuery('#home_notice').find("ul");
var lastLi=jQuery('#home_notice').find("ul li:last-child");
var firstLi=jQuery('#home_notice').find("ul li:first-child");
//卷动的距离
var dis=lastLi.offset().left-firstLi.offset().left+lastLi.width();
scrollObj.html(scrollObj.html()+scrollObj.html());
var myScroll = setInterval("marquee()",30);
jQuery('#home_notice').hover(function(){clearInterval(myScroll);},function(){myScroll = setInterval("marquee()",30);});