// JavaScript Document
sfHover = function() {
var sfEls = document.getElementById("nav").getElementsByTagName("LI");
for (var i=0; i<sfEls.length; i++) {
sfEls[i].onmouseover=function() {
	this.className+=" sfhover";
}
sfEls[i].onmouseout=function() {
	this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
}
}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

//=点击展开关闭效果=
function openShutManager(oSourceObj,oTargetObj,shutAble,oOpenTip,oShutTip){
var sourceObj = typeof oSourceObj == "string" ? document.getElementById(oSourceObj) : oSourceObj;
var targetObj = typeof oTargetObj == "string" ? document.getElementById(oTargetObj) : oTargetObj;
var openTip = oOpenTip || "";
var shutTip = oShutTip || "";
if(targetObj.style.display!="none"){
   if(shutAble) return;
   targetObj.style.display="none";
   if(openTip  &&  shutTip){
    sourceObj.innerHTML = shutTip; 
   }
} else {
   targetObj.style.display="block";
   if(openTip  &&  shutTip){
    sourceObj.innerHTML = openTip; 
   }
}
}
function show_city(p){
document.getElementById(p).style.display="block"; 
}
function hidden_city(q){
document.getElementById(q).style.display="none"; 
}