//TAB导航

function setTab(m,n){
var tli=document.getElementById("dao"+m).getElementsByTagName("a");
var mli=document.getElementById("tabmian"+m).getElementsByTagName("div");
for(i=0;i<tli.length;i++){
   tli[i].className=i==n?"tabTitleLi":"";
   mli[i].style.display=i==n?"block":"none";
}
}



//导航下拉菜单

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";
 }
 node.onmouseout=function() {
 this.className=this.className.replace(" over", "");
 }
 }
 }
 }
}
window.onload=startList;