function $(id){
	return document.getElementById(id);
}
var pic_data="";
var pic_this = 1;
var pic_get_xunhuan;
function get_pic(){

		pic_data+= "~http://img.school51.com/2008-12-23/2008122343322549.jpg|/Pic_New/2008-12/37/|[武汉] 《搜购007》--节目录制";
	
		pic_data+= "~http://img.school51.com/2008-12-13/2008121364927721.jpg|/Pic_New/2008-12/29/|[武汉] 搏击体验课";
	
		pic_data+= "~http://img.school51.com/2008-12-10/2008121065483921.jpg|/Pic_New/2008-12/26/|[武汉] 瑜伽--做美丽的小女人";
	
		pic_data+= "~http://img.school51.com/2008-12-4/2008120453366053.jpg|/Pic_New/2008-12/18/|[武汉] 奥运冠军杜丽见面会";
	
		pic_data+= "~http://img.school51.com/2008-12-1/2008120144849009.jpg|/Pic_New/2008-12/4/|[武汉] 快乐总动员--秋游";
	
		pic_data+= "~http://img.school51.com/2008-11-24/2008112451240917.jpg|/Pic_New/2008-11/74/|[武汉] 搏击体验课";
	
		pic_data+= "~http://img.school51.com/2008-11-24/2008112444096777.jpg|/Pic_New/2008-11/72/|[武汉] 天黑，请闭眼";
	
		pic_data+= "~http://img.school51.com/2008-11-17/2008111765280449.jpg|/Activity_Pic/Stencil/?id=304/|[武汉] 不一样的“魔法”活动花絮";
		
	pic_data = pic_data.split("~");
	for(var i=1;i<pic_data.length;i++){
		pic_data[i] = pic_data[i].split("|");
		$("small_img").innerHTML += "<li><a href=\"Javascript:void(0)\" onclick=\"pic_get("+ i +")\"><img src=\"" + pic_data[i][0] + "\" width=\"75\" height=\"33\" border=\"0\" align=\"absmiddle\" /></a></li>";
	}
	pic_get(1);
}

//最新活动图片点击小图片更换大图片地址
function pic_get(n){
	clearInterval(pic_get_xunhuan);
	if(n >= pic_data.length){
		n=1;
	}else if(n<1){
		n=pic_data.length-1;
	}
	$("small_img").getElementsByTagName("li")[n-1].getElementsByTagName("a")[0].className = "this_small_img";
	if(n!=pic_this){
		$("small_img").getElementsByTagName("li")[pic_this-1].getElementsByTagName("a")[0].className = undefined;
	}
	//if(IsIE()){
	//	$("Activity_img_big_img").filters[0].Apply();
	//	$("Activity_img_big_img").style.backgroundImage = "url(" + pic_data[n][0] + ")";
	//	$("Activity_img_big_img").filters[0].Play(duration=2);
	//}else{
		$("Activity_img_big_img").style.backgroundImage = "url(" + pic_data[n][0] + ")";
	//}
	
	$("Activity_img_big_img").href = pic_data[n][1];
	$("Activity_img_title").innerHTML = pic_data[n][2];
	$("Activity_img_title").href = pic_data[n][1];
	
	pic_this = n ;
	var n1=Math.ceil(n/4) - 1;
	$("small_img").scrollTop = 40*n1;
	pic_get_xunhuan=setInterval("pic_get(" + (n+1) + ")",5000);
}