左右图片循环滚动停顿一下后继续

<Script Language="JavaScript">

var oState = 'oImg1';

function filterImg(){

oDiv.filters[0].Apply();

switch(oState){

case 'oImg1' :

oState = 'oImg2';

self['oImg1'].style.visibility = 'visible';

self['oImg2'].style.visibility = 'hidden';

self['oImg3'].style.visibility = 'hidden';

break;

case 'oImg2' :

oState = 'oImg3';

self['oImg1'].style.visibility = 'hidden';

self['oImg2'].style.visibility = 'visible';

self['oImg3'].style.visibility = 'hidden';

break;

case 'oImg3' :

oState = 'oImg1';

self['oImg1'].style.visibility = 'hidden';

self['oImg2'].style.visibility = 'hidden';

self['oImg3'].style.visibility = 'visible';

break;

default :

break;

}

oDiv.filters[0].Play();

setTimeout('filterImg()',1500);