var w3c=(document.getElementById)? true:false;
var agt=navigator.userAgent.toLowerCase();
var ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1) && (agt.indexOf("omniweb") == -1));
var ie5=(w3c && ie)? true : false;
var ns6=(w3c && (navigator.appName=="Netscape"))? true: false;
var op8=(navigator.userAgent.toLowerCase().indexOf("opera")==-1)? false:true;

String.prototype.replaceAll = function(s1,s2){
this.str=this;
if(s1.length==0)return this.str;
 var idx=this.str.indexOf(s1);
 while(idx>=0){
 this.str=this.str.substring(0, idx)+s2+this.str.substr(idx+s1.length);
 idx=this.str.indexOf(s1);
 }
 return this.str;
}

function $(o){
 var o=document.getElementById(o)?document.getElementById(o):o;
 return o;
}

document.getElementsByClassName = function(className,oBox) {
 this.d= oBox || document;
 var children = this.d.getElementsByTagName('*') || document.all;
 var elements = new Array();
 for (var i = 0; i < children.length; i++) {
 var child = children[i];
 var classNames = child.className.split(' ');
 for (var j = 0; j < classNames.length; j++) {
 if (classNames[j] == className) {
 elements.push(child);
 break;
 }
 }
 }
 return elements;
}


$Cls = function (s,o){
return document.getElementsByClassName(s,o);
};

function ExCls(o,a,b){
 o.className=(o.className.indexOf(a)!=-1)?b:a;
}
		

function addCls(o,s){
 if (o.className.length>0) {
	 o.className+=" "+s;
 } else {
	 o.className=s;
 }
}

function delCls(o,s){
 o.className=o.className.replace(s,"");
  o.className=o.className.replaceAll("  ","");
}


function ExChgDir(){
 var oBox=document.getElementById("Bodyer");
 var sCls="noBSide";
 var havCls=(oBox.className.indexOf(sCls)!=-1);
 if (havCls) {
   delCls(oBox,sCls);
   $("BtnCloseDir").innerHTML="&#171; 关闭边侧栏";
 } else {
   addCls(oBox,sCls);
   $("BtnCloseDir").innerHTML="&#187; 打开边侧栏";
 }
}

function showUrl(hot) {
for(i=0;i<hot.length;i++){
  var lst = '';
  if (i == (hot.length -1))
    lst = ' class="lst"';
  document.write('<LI'+lst+'><b>'+(i+1)+'.</b><a href="'+unescape(hot[i][0])+'" target="_blank">'+hot[i][1]+"</a></LI>");
}
}

function SetCookie(name,value){
     var argv=SetCookie.arguments;
     var argc=SetCookie.arguments.length;
     var expires=(2<argc)?argv[2]:null;
     var path=(3<argc)?argv[3]:null;
     var domain=(4<argc)?argv[4]:null;
     var secure=(5<argc)?argv[5]:false;
     document.cookie=name+"="+escape(value)+((expires==null)?"":("; expires="+expires.toGMTString()))+((path==null)?"":("; path="+path))+((domain==null)?"":("; domain="+domain))+((secure==true)?"; secure":"");
}

function DeleteCookie (cookie_name){
  var cookie_date = new Date ( );  // current date & time
  cookie_date.setTime ( cookie_date.getTime() - 1 );
  document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
}


function GetCookie(Name) {
 var search = Name + "=";
 var returnvalue = "";
 if (document.cookie.length > 0) {
  offset = document.cookie.lastIndexOf(search);
  if (offset != -1) {
   offset += search.length;
   end = document.cookie.indexOf(";", offset);
   if (end == -1)
   end = document.cookie.length;
   returnvalue=unescape(document.cookie.substring(offset,end));
  }
 }
 return returnvalue;
}

function GetSubCookie(Name, CookieValue) {
 var search = Name + "=";
 var returnvalue = "";
 if (CookieValue.length > 0) {
  offset = CookieValue.indexOf(search);
  if (offset != -1) {
   offset += search.length;
   end = CookieValue.indexOf("&", offset);
   if (end == -1)
   end = CookieValue.length;
   returnvalue=unescape(CookieValue.substring(offset,end));
  }
 }
 return returnvalue;
}


function SavMyHit(o){
 var MyHitStatus=GetCookie("MyHitStatus");
 if (MyHitStatus=="close") return;
 var sNewSite=o.innerHTML+"|"+o.href+";";
 var sOldSite=GetCookie("61dhHits");
  sOldSite.length>2048?sOldSite=sOldSite.substring(0,2048):"";
 if (sOldSite.indexOf(sNewSite)!=-1) {
  sOldSite=sOldSite.replace(sNewSite,"");
 }
  sNewSite+=sOldSite;
  var expdate=new Date();
  expdate.setTime(expdate.getTime()+(24*60*60*1000*30));
  SetCookie("61dhHits",sNewSite,expdate,"/","61dh.com",false);
}

function GetMyHit(n){
 this.maxlength=n || 20;
 var sOldSite=GetCookie("61dhHits");
 sOldSite=sOldSite.split(";");
 var nMaxNum=sOldSite.length>this.maxlength?this.maxlength+1:sOldSite.length;
 var sHtml="<ul class=\"Top listUrl\">\n";
 for (i=0;i<nMaxNum-1;i++) {
  var sTempInfo=sOldSite[i].split("|");
  sHtml+="<li><b>"+(i+1)+".</b><a href=\""+sTempInfo[1]+"\" target=\"_blank\">"+sTempInfo[0]+"</a></li>\n";
 }
 if (nMaxNum<=1) {
   sHtml="<ul class=\"Top listUrl\">\n";
   sHtml+="<li>暂无浏览记录！</li>\n"
 }
 sHtml+="</ul>\n";
 sHtml+="<div id=\"clearHits\"><a href=\"javascript:;\" title=\"点此可以清除您“最近浏览网站”的所有记录。\" onclick=\"clearMyHit();\">[清除记录]</a>&nbsp;";
  var MyHitStatus=GetCookie("MyHitStatus");
  if (MyHitStatus=="open"||MyHitStatus=="")
    sHtml+="<a href=\"javascript:;\" title=\"点此停用“最近浏览网站”的功能，系统将不再记录您最近浏览过的网站。\" onclick=\"chgMyHit('close');\">[停用]</a></div>";
  else
    sHtml+="<a href=\"javascript:;\" title=\"点此启用“最近浏览网站”的功能，系统将记录您最近浏览过的网站。\" onclick=\"chgMyHit('open');\">[启用]</a></div>";
 document.getElementById("61dhHis").innerHTML=sHtml;
}

function clearMyHit(){
  var expdate=new Date();
  expdate.setTime(expdate.getTime()+(24*60*60*1000*30));
  SetCookie("61dhHits","",expdate,"/","61dh.com",false);
  SetCookie("61dhHits","",expdate,"/",null,false);
  GetMyHit();
}

function set61dhHit(allSiteBox){
  var arrSites="";
  for(var i=0;i<allSiteBox.length;i++){
  	arrSites=allSiteBox[i].getElementsByTagName("a");
   	for(var j=0;j<arrSites.length;j++){
			arrSites[j].onclick=function(){
	 		SavMyHit(this);
	 		GetMyHit();
			}
   	}
  }
}

function chgMyHit(stat){
  var expdate=new Date();
  expdate.setTime(expdate.getTime()+(24*60*60*1000*30));
  SetCookie("MyHitStatus",stat,expdate,"/","61dh.com",false);
  GetMyHit();
}


function HitFam(n1,n2){
 for (var i=1;i<=n2;i++) {
   if (i==n1) {
	$("FamTab"+i).className="active";
	$("famSiteBox"+i).className="famSiteBox";
   } else {
 	$("FamTab"+i).className="";
	$("famSiteBox"+i).className="hidden";
   }
 }
}

function HitTree(e){
 var tag = ie ? e.srcElement : e.target;ExCls(tag.parentNode,"open","close");
}

function SetEvt(o,a,b){
 ie?o.attachEvent("on"+a,b):o.addEventListener(a,b, false);
}



function CNLTree(id,ClsOpen,ClsClose,ClsChild){
 this.id=id;
 this.ClassOpen=ClsOpen || "open";
 this.ClassClose=ClsClose || "close";
 this.ClassChild=ClsChild || "child";
 this.AddEvt = function () {
  var arrObj=document.getElementById(this.id).getElementsByTagName("img");
  for (var i=0;i<arrObj.length; i++) {
   if (arrObj[i].className=="s") {
     SetEvt(arrObj[i],"click",HitTree);
	 ie?arrObj[i].style.cursor="hand":"";
   }
  }
 }
}

function setHomePage(){
  if (document.all){
    document.body.style.behavior='url(#default#homepage)';
    document.body.setHomePage('http://www.61dh.com');
  }
  else alert("很抱歉，改功能只适合于IE。");
}

function bookmarkSite(title, url){
if (document.all)
window.external.AddFavorite(url, title);
else if (window.sidebar)
window.sidebar.addPanel(title, url, "")
}