/* $Id: index.js  $ */

function AddFavorite(sURL, sTitle)
{
   if (document.all)
   {
      window.external.addFavorite(sURL, sTitle);
   }
   else if(window.sidebar)
   {
      window.sidebar.addPanel(sTitle, sURL, "");
   }
}

function checkForm()
{
	var Form = document.searchForm;
	if(Form.keywords.value == '')
	{
		alert('请输入搜索关键字!');
		Form.keywords.focus();
		return false;
	}
}


var ads_T = 500; 
var ads_N = 493; //高度。如果高度调整不正确，可能会导致图片无法自动收缩 
var ads_time = 500; 
var ads_h = 0; 
// 首页下拉式广告 AD
function loadImage(url)
{	
    var img = new Image(); //创建一个Image对象，实现图片的预下载
    img.src = url;
   // 如果图片已经存在于浏览器缓存，直接调用回调函数
    if (img.complete) 
	{      		
		addCount(); 
        return; // 直接返回，不用再处理onload事件
    }
	//图片下载完毕时异步调用callback函数。
    img.onload = function ()
	{ 
		addCount(); 
    }
}


function noneAds() 
{ 
	if(ads_T>0) 
	{ 
		ads_T--; 
		ads_N = ads_N-25; 
	} 
	else 
	{ 
		return; 
	} 
	//alert(ads_N);
	if(ads_N<=0) 
	{ 	
		$("#advtop01").hide();//表示display:none;
		return; 
	} 
    $("#advtop01").height(ads_N);	
	setTimeout("noneAds()",30); 
} 

function addCount() 
{ 
	if(ads_time>0) 
	{ 
		ads_time--; 
		ads_h = ads_h+5; 
	} 
	else 
	{ 
	  return; 
	} 
	
	if(ads_h>=493) //高度 
	{ 	
	  setTimeout("noneAds()",5000);//停留时间自己适当调整
	  return; 
	} 
	$("#advtop01").show();//表示display:block,
	$("#advtop01").height(ads_h);
	setTimeout("addCount()",30); 
} 
/**  
 * 显示当前时间  
*/  
function initArray(){   
    this.length=initArray.arguments.length;   
    for(var i=0;i<this.length;i++)   
        this[i+1]=initArray.arguments[i];   
} 
function getCurrentDate(){   
       
    today=new Date();         
    var d=new initArray("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");   
    document.write(       
    today.getYear(),"年",   
    today.getMonth()+1,"月",   
    today.getDate(),"日  ",   
    d[today.getDay()+1]  
    );     
} 
/*===================================*/
//选项卡切换
function showTab(n1,n2){
	var h=document.getElementById("tab"+n1).getElementsByTagName("h3");
	var d=document.getElementById("tab"+n1).getElementsByTagName("div");
	for(var i=0;i<h.length;i++){
		if(n2-1==i){
			h[i].className+=" up";
			d[i].className+=" block";
		}
		else {
			h[i].className=" ";
			d[i].className=" ";
		}
	}
}
/*==================================*/
//** Featured Content Slider script- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com.
var featuredcontentslider={
enablepersist: true, //persist to last content viewed when returning to page?
settingcaches: {}, //object to cache "setting" object of each script instance
 
buildcontentdivs:function(setting){
	var alldivs=document.getElementById(setting.id).getElementsByTagName("div")
	
	for (var i=0; i<alldivs.length; i++){
		if (this.css(alldivs[i], "contentdiv", "check")){ //check for DIVs with class "contentdiv"
			setting.contentdivs.push(alldivs[i])
				alldivs[i].style.display="none" //collapse all content DIVs to begin with
		}
	}
},

buildpaginate:function(setting){
	this.buildcontentdivs(setting)
	var sliderdiv=document.getElementById(setting.id)
	var pdiv=document.getElementById("paginate-"+setting.id)
	var toc=setting.toc
	var pdivlinks=pdiv.getElementsByTagName("a")
	var toclinkscount=0 //var to keep track of actual # of toc links

	for (var i=0; i<pdivlinks.length; i++){
		if (this.css(pdivlinks[i], "toc", "check")){
			if (toclinkscount>setting.contentdivs.length-1){ //if this toc link is out of range (user defined more toc links then there are contents)
				pdivlinks[i].style.display="none" //hide this toc link
				continue
			}
			
			
			pdivlinks[i].setAttribute("rel", ++toclinkscount) //store page number inside toc link
			pdivlinks[i][setting.revealtype]=function(){
				
				$("#"+setting.id+"-title").text(this.title);
				featuredcontentslider.turnpage(setting, this.getAttribute("rel"))
				return false
			}
			setting.toclinks.push(pdivlinks[i])
		}
		else if (this.css(pdivlinks[i], "prev", "check") || this.css(pdivlinks[i], "next", "check")){ //check for links with class "prev" or "next"
			
			pdivlinks[i].onclick=function(){
				featuredcontentslider.turnpage(setting, this.className)
				return false
			}
		}
	}
	this.turnpage(setting, setting.currentpage, true)
	if (setting.autorotate[0]){ //if auto rotate enabled
		pdiv[setting.revealtype]=function(){
			featuredcontentslider.cleartimer(setting, window["fcsautorun"+setting.id])
		}
		sliderdiv["onclick"]=function(){ //stop content slider when slides themselves are clicked on
			featuredcontentslider.cleartimer(setting, window["fcsautorun"+setting.id])
		}
		setting.autorotate[1]=setting.autorotate[1]+(1/setting.enablefade[1]*50) //add time to run fade animation (roughly) to delay between rotation
	 this.autorotate(setting)
	}
},

urlparamselect:function(fcsid){
	var result=window.location.search.match(new RegExp(fcsid+"=(\\d+)", "i")) //check for "?featuredcontentsliderid=2" in URL
	return (result==null)? null : parseInt(RegExp.$1) //returns null or index, where index (int) is the selected tab's index
},
 
turnpage:function(setting, thepage, autocall){
	
	var currentpage=setting.currentpage //current page # before change
	var totalpages=setting.contentdivs.length
	
	var turntopage=(/prev/i.test(thepage))? currentpage-1 : (/next/i.test(thepage))? currentpage+1 : parseInt(thepage)
	turntopage=(turntopage<1)? totalpages : (turntopage>totalpages)? 1 : turntopage //test for out of bound and adjust
	
	if (turntopage==setting.currentpage && typeof autocall=="undefined") //if a pagination link is clicked on repeatedly
		return
	setting.currentpage=turntopage
//	setting.contentdivs[turntopage-1].style.zIndex=++setting.topzindex
	this.cleartimer(setting, window["fcsfade"+setting.id])
	setting.cacheprevpage=setting.prevpage
	//
	
	if (setting.enablefade[0]==true){
		setting.curopacity=0
		this.fadeup(setting)
	}
	if (setting.enablefade[0]==false){ //if fade is disabled, fire onChange event immediately (verus after fade is complete)
	
		setting.contentdivs[setting.prevpage-1].style.display="none" //collapse last content div shown (it was set to "block")
		setting.onChange(setting.prevpage, setting.currentpage)
	}
	$("#"+setting.id+"-title").text(setting.contentdivs[turntopage-1].title);
	
	setting.contentdivs[turntopage-1].style.visibility="visible"
	setting.contentdivs[turntopage-1].style.display="block"
	if (setting.prevpage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)
		this.css(setting.toclinks[setting.prevpage-1], "selected", "remove")
	if (turntopage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)
		this.css(setting.toclinks[turntopage-1], "selected", "add")
	setting.prevpage=turntopage
	if (this.enablepersist)
		this.setCookie("fcspersist"+setting.id, turntopage)
},
 
setopacity:function(setting, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)
	var targetobject=setting.contentdivs[setting.currentpage-1]
	if (targetobject.filters && targetobject.filters[0]){ //IE syntax
		if (typeof targetobject.filters[0].opacity=="number") //IE6
			targetobject.filters[0].opacity=value*100
		else //IE 5.5
			targetobject.style.filter="alpha(opacity="+value*100+")"
	}
	else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
		targetobject.style.MozOpacity=value
	else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
		targetobject.style.opacity=value
	setting.curopacity=value
},
 
fadeup:function(setting){
	if (setting.curopacity<1){
		this.setopacity(setting, setting.curopacity+setting.enablefade[1])
		window["fcsfade"+setting.id]=setTimeout(function(){featuredcontentslider.fadeup(setting)}, 50)
	}
	else{ //when fade is complete
		if (setting.cacheprevpage!=setting.currentpage) //if previous content isn't the same as the current shown div (happens the first time the page loads/ script is run)
			setting.contentdivs[setting.cacheprevpage-1].style.display="none" //collapse last content div shown (it was set to "block")
		setting.onChange(setting.cacheprevpage, setting.currentpage)
	}
},
 
cleartimer:function(setting, timervar){
	if (typeof timervar!="undefined"){
		clearTimeout(timervar)
		clearInterval(timervar)
		if (setting.cacheprevpage!=setting.currentpage){ //if previous content isn't the same as the current shown div
			setting.contentdivs[setting.cacheprevpage-1].style.display="none"
		}
	}
},
 
css:function(el, targetclass, action){
	var needle=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "ig")
	if (action=="check")
		return needle.test(el.className)
	else if (action=="remove")
		el.className=el.className.replace(needle, "")
	else if (action=="add")
		el.className+=" "+targetclass
},
 
autorotate:function(setting){
	
 window["fcsautorun"+setting.id]=setInterval(function(){featuredcontentslider.turnpage(setting, "next")}, setting.autorotate[1])
},
 
getCookie:function(Name){ 
	var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
	if (document.cookie.match(re)) //if cookie found
		return document.cookie.match(re)[0].split("=")[1] //return its value
	return null
},
 
setCookie:function(name, value){
	document.cookie = name+"="+value
 
},
 
init:function(setting){
	var persistedpage=this.getCookie("fcspersist"+setting.id) || 1
	var urlselectedpage=this.urlparamselect(setting.id) //returns null or index from: mypage.htm?featuredcontentsliderid=index
	this.settingcaches[setting.id]=setting //cache "setting" object
	setting.contentdivs=[]
	setting.toclinks=[]
//	setting.topzindex=0
	setting.currentpage=urlselectedpage || ((this.enablepersist)? persistedpage : 1)
	setting.prevpage=setting.currentpage
	setting.revealtype="on"+(setting.revealtype || "click")
	setting.curopacity=0
	setting.onChange=setting.onChange || function(){}
	if (setting.contentsource[0]=="inline")
	
		this.buildpaginate(setting)
}
 
}