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var cur_img = 0;
var total =image_list.length-1;
function showImg(n){
cur_img += n;
if(cur_img < 0) cur_img = total;
else if(cur_img > total) cur_img = 0;
image.src="../images/zp/dongjiao/"+image_list[cur_img];
}
window.onload=function(){showImg(0)}


startList = function() {
if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" over";
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 }
}
window.onload=startList;