isns = navigator.appName == "Netscape";
function ztstr(id,picurl,linkurl)
{
this.id=id;
this.picurl=picurl;
this.linkurl=linkurl;
}zhuanti=new Array();
imgcount=1;
frequency=5*1000;//30秒//在这里修改图片的路径和链接
zhuanti[1]=new ztstr('1','../res/img/main_01.png','#');
zhuanti[2]=new ztstr('2','../res/img/main_02.png','#');
zhuanti[3]=new ztstr('2','../res/img/main_03.png','#');
zhuanti[4]=new ztstr('2','../res/img/main_com.png','#');
zhuanti[5]=new ztstr('2','../res/img/main_05.png','#');
imgcount=zhuanti.length-1;
for(i=1;i<=imgcount;i++)
{
eval("img"+i+"=new Image()");
eval("img"+i+".src=zhuanti["+i+"].picurl");
}
nn=1;
var rand1 = 0;
var useRand = 0;
function swapPic() {
var imgnum = zhuanti.length - 1;
do {
var randnum = Math.random();
rand1 = Math.round((imgnum - 1) * randnum) + 1;
} while (rand1 == useRand);
useRand = rand1;
// alert(useRand);
//nn=useRand; 图片随机指定一张作为循环的开始
change_img();
}
function change_img()
{
eval('document.pic.src=img'+nn+'.src');
nn++;
if(nn>imgcount) nn=1;
if(!isns)
{
pic.filters.item(0).apply();
pic.style.visibility='visible';
pic.filters.item(0).play();
setTimeout("pic.style.visibility='hidden'",frequency);
}
else
document.pic.visibility='visible';
tt=setTimeout('change_img()',frequency);
}
function pictarget()
{
tt=nn-1;
if(tt<1) tt=imgcount;
cururl=zhuanti[tt].linkurl;
//window.open(cururl);
}
function ini()
{
if(!isns)
{
spacewidth=Math.round((divmask.offsetWidth-770)/2);
dmwidth=770+spacewidth;
dmheight=divmask.offsetHeight;
totalstep=50;
timeout=50;
dmstepw=Math.round(770/totalstep);
dmsteph=Math.round(dmheight/totalstep);
setTimeout('hidimg()',3000);
}
else swapPic();
}
function hidimg()
{
dmwidth-=dmstepw;
dmheight-=dmsteph;
eval('divmask.style.clip="rect(0,'+dmwidth+','+dmheight+',0)"');
hdrun=setTimeout('hidimg()',timeout);
if(dmwidth<=spacewidth&&dmheight<=0)
{
divmask.style.visibility='hidden';
clearTimeout(hdrun);
swapPic();
}
}