var newsimgs_rotate_delay = 3800; // delay in milliseconds (5000 = 5 secs)
newsimgs_current = 0;
newsimgs=[
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newsimgtexts=[
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'授课老师在辅导学员上机',
'学员上机情景之一',
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function newsimgotate() {
newsimgs_current = (newsimgs_current == newsimgs.length-2) ? 0 : newsimgs_current+1;
newsimg.innerHTML = newsimgs[newsimgs_current];
newsimgtext.innerText = newsimgtexts[newsimgs_current];
window.setTimeout("newsimgotate()", newsimgs_rotate_delay);
}
newsimgotate()