从网上下了一段图片变换的js程序，在IE6下可以正常显示，在IE7下则不行，请高手指点
html的body部分加入：
<script language="javascript" type="text/javascript" src="js/showimage.js"></script>
js文件如下:
var elady_step=1;
var elady_speed=80;
var e_tp=new Array();
var adNum_elady1=0;
var elady_stop_sh=0;
var elady_star_sh=1;
function elady1_moveImg(){
if ((!document.all&&!document.getElementById)||(elady_stop_sh==0)) return;
if (elady_star_sh==1){
document.all.elady1_divimg.style.pixelTop=parseInt(document.all.elady1_divimg.style.pixelTop)+elady_step;
}
else if (elady_star_sh==2){
document.all.elady1_divimg.style.pixelLeft=parseInt(document.all.elady1_divimg.style.pixelLeft)+elady_step;
}
else if (elady_star_sh==3){
document.all.elady1_divimg.style.pixelTop=parseInt(document.all.elady1_divimg.style.pixelTop)-elady_step;
}
else {
document.all.elady1_divimg.style.pixelLeft=parseInt(document.all.elady1_divimg.style.pixelLeft)-elady_step;
}
if (elady_star_sh<3) { elady_star_sh++; }
else { elady_star_sh=1; }
setTimeout("elady1_moveImg()",elady_speed);
}
e_tp[0]="images/img1.jpg";
e_tp[1]="images/img2.jpg";
e_tp[2]="images/img3.jpg";
function elady1_set()
{ if (document.all)
{ e_tprotator.filters.revealTrans.Transition=Math.floor(Math.random()*23);
e_tprotator.filters.revealTrans.apply();
}
}
function elady1_playCo()
{ if (document.all)
{ e_tprotator.filters.revealTrans.play(); }
}
function elady1_nextAd()
{ if (adNum_elady1<e_tp.length-1) { adNum_elady1++ ; }
else adNum_elady1=0;
elady1_set();
document.images.e_tprotator.src=e_tp[adNum_elady1];
elady1_playCo();
theTimer=setTimeout("elady1_nextAd()", 4000);
}
function elady1_listMsg()
{
document.returnValue = true;
}
document.write("<div id='elady1_divimg' style='position:relative'>");
document.write("<img style='FILTER: revealTrans(duration=2,transition=20)' src='javascript:elady1_nextAd()' border=0 width=840px height=500px align='center' id='e_tprotator'>");
document.write("</div>");
