var links = new Array();
links[1] = "CaseZone.aspx?cid=1046&id=0";
links[2] = "view_0.aspx?cid=1036&id=3&ctype=2";
links[3] = "vote.aspx";
links[4] = "MeetingOnline.aspx?cid=1037";
var imgs = new Array();
for(var n = 1; n <= 4; n++) imgs[n] = new Image();
imgs[1].src = "images/IEI_EADV_25.jpg";
imgs[2].src = "images/NewLast_25.jpg";
imgs[3].src ="images/NewLasV_28.jpg"
imgs[4].src="images/NewLast_30.jpg";
var imgwidth = 263;//图片宽度
var imgheight = 120;//图片宽度
var oi = document.getElementById("banaer_pic");
var pause = false;
var curid = 1;
var lastid = 1;
var sw = 1;
var opacity = 100;
var speed = 15;
var delay = (document.all)? 400:700;
var divlink = document.getElementById("dlink")


function SetAlpha(){
if(document.all){
if(oi.filters && oi.filters.Alpha) oi.filters.Alpha.opacity = opacity;
}else{
oi.style.MozOpacity = ((opacity >= 100)? 99:opacity) / 100;
}
}
function ImgSwitch(id, p){
if(p){
pause = true;
opacity = 100;
SetAlpha();
}
oi.src = imgs[id].src;
divlink.href = links[id];
curid = lastid = id;
}
function ScrollImg(){
if(pause && opacity >= 100) return;
if(sw == 0){
opacity += 2;
if(opacity > delay){ opacity = 100; sw = 1; }
}
if(sw == 1){
opacity -= 3;
if(opacity < 10){ opacity = 10; sw = 3; }
}
SetAlpha();
if(sw != 3) return;
sw = 0;
curid++;
//修改点2：这里的4也是个数
if(curid > 4) curid = 1;
ImgSwitch(curid, false);
}
function Pause(s){
pause = s;
}
function StartScroll(){
setInterval(ScrollImg, speed);
}
function CheckLoad(){
if (imgs[1].complete == true && imgs[2].complete == true&&imgs[3].complete == true) {
clearInterval(checkid);
setTimeout(StartScroll, 1500);
}
}
var checkid = setInterval(CheckLoad, 10);