function getObject(objectId) {	
  if(document.getElementById && document.getElementById(objectId)) {return document.getElementById(objectId);} 
  else if (document.all && document.all(objectId)) {return document.all(objectId); } 
  else if (document.layers && document.layers[objectId]) {return document.layers[objectId]; } 
  else {return false;}	 
}	
function changNav(m){
	for(var i=1;i<=12;i++){				
		if(i==m) {
			 getObject("nav_"+m).className="bg";		
			getObject("subnav_"+m).className="visible";
		}
		else{
			 getObject("nav_"+i).className="";	
			getObject("subnav_"+i).className="hidden";				
		}  			
	}
}

		var scrollPic_02 = new ScrollPic();
		scrollPic_02.scrollContId   = "ISL_Cont_1"; //内容容器ID
		scrollPic_02.arrLeftId      = "LeftArr";//左箭头ID
		scrollPic_02.arrRightId     = "RightArr"; //右箭头ID

		scrollPic_02.frameWidth     = 318;//显示框宽度
		scrollPic_02.pageWidth      = 314; //翻页宽度

		scrollPic_02.speed          = 10; //移动速度(单位毫秒，越小越快)
		scrollPic_02.space          = 10; //每次移动像素(单位px，越大越快)
		scrollPic_02.autoPlay       = false; //自动播放
		scrollPic_02.autoPlayTime   = 3; //自动播放间隔时间(秒)

		scrollPic_02.initialize(); //初始化
		
		//页面左侧随页面滚动层函数
function scrollImg(){   
    var posX,posY;   
    if (window.innerHeight) {   
        posX = window.pageXOffset;   
        posY = window.pageYOffset;   
    }   
    else if (document.documentElement  &&  document.documentElement.scrollTop) {   
        posX = document.documentElement.scrollLeft;   
        posY = document.documentElement.scrollTop;   
    }   
    else if (document.body) {   
        posX = document.body.scrollLeft;   
        posY = document.body.scrollTop;   
    }   
    var ad=document.getElementById("ad");   
    ad.style.top=(posY+100)+"px";   
    ad.style.left=(posX+50)+"px";   
    setTimeout("scrollImg()",100);   
}