///公用js文件================

//*清除空白节点*
//较少使用,多一次循环过程
//===========================
function cleanwhitespaces(elem){
    var elem = elem || document;
    var parentelem = elem; 
    var childelem = parentelem.childnodes;
    var childelemarray = new array;
    for (var i=0; i<childelem.length; i++){
        if (childelem[i].nodetype==1){
            childelemarray.push(childelem[i]);
        }
    }
    return childelemarray;
}

//*获取相应id对象*
//===========================
var $getobj = function (id) {
	return "string" == typeof id ? document.getelementbyid(id) : id;
}

//*判断浏览器类型*
//===========================

var browser = {};
var ua = navigator.useragent.tolowercase();
var s;
(s = ua.match(/msie ([\d.]+)/)) ? browser.ie = s[1] :
(s = ua.match(/firefox\/([\d.]+)/)) ? browser.firefox = s[1] :
(s = ua.match(/chrome\/([\d.]+)/)) ? browser.chrome = s[1] :
(s = ua.match(/opera.([\d.]+)/)) ? browser.opera = s[1] :
(s = ua.match(/version\/([\d.]+).*safari/)) ? sys.safari = s[1] : 0;


//*获取对象外部样式表的属性*
//===========================
var currentstyle = function(element){
	return element.currentstyle || document.defaultview.getcomputedstyle(element, null);
}


//*图片等比例大小*
//图片对象、比例宽、比例高
//===========================
var drawimage = function (imgd,picwidth,picheight){ 
    var image=new image(); 
    image.src=imgd.src; 
    if(image.width>0 && image.height>0){ 
        if(image.width/image.height>= picwidth/picheight){ 
            if(image.width>picwidth){
                imgd.width=picwidth; 
                imgd.height=(image.height*picwidth)/image.width; 
            }else{ 
                imgd.width=image.width;
                imgd.height=image.height; 
            } 
            imgd.alt=""; 
        }else{ 
            if(image.height>picheight){
                imgd.height=picheight; 
                imgd.width=(image.width*picheight)/image.height; 
            }else{ 
                imgd.width=image.width;
                imgd.height=image.height; 
            } 
            imgd.alt=""; 
        } 
    }
}

//*图片等比例大小*
//图片对象、比例宽、比例高
//===========================
var sidedrawimage = function (imgd,picwidth,picheight){
    var wrap = imgd.parentnode;
    var wrappadding = parseint(currentstyle(wrap).paddingleft) || 0;

    var image=new image(); 
    image.src=imgd.src;
    if(image.width>0 && image.height>0){ 
        if(image.width/image.height>= picwidth/picheight){ 
            if(image.width>picwidth){
                imgd.width=picwidth; 
                imgd.height=(image.height*picwidth)/image.width;
                
                wrap.style.width = (picwidth + wrappadding) + "px";
                wrap.style.height = ((image.height*picwidth)/image.width  + wrappadding) + "px";
            }else{ 
                imgd.width=image.width;
                imgd.height=image.height; 
                
                wrap.style.width = (image.width + wrappadding) + "px";
                wrap.style.height = (image.height + wrappadding) + "px";
            } 
            imgd.alt=""; 
        }else{ 
            if(image.height>picheight){
                imgd.height=picheight; 
                imgd.width=(image.width*picheight)/image.height; 
                
                
                wrap.style.height = (picheight + wrappadding) + "px";
                wrap.style.width = ((image.width*picheight)/image.height  + wrappadding) + "px";
            }else{ 
                imgd.width=image.width;
                imgd.height=image.height; 
                
                wrap.style.width = (image.width + wrappadding) + "px";
                wrap.style.height = (image.height + wrappadding) + "px";
            } 
            imgd.alt=""; 
        } 
    }
}

//*修正ie6 :hover背景闪烁*
//使用时统一加载判断,此处不做浏览器判断
//===========================
var iebgimgcache = function(){
    document.execcommand('backgroundimagecache', false, true);
}

//加入收藏
//===========================
function addfavorite(surl, stitle){
    try{
        window.external.addfavorite(surl, stitle);
    }catch (e){
        try{
            window.sidebar.addpanel(stitle, surl, "");
        }catch (e){
            alert("加入收藏失败，请使用ctrl+d进行添加");
        }
    }
}



//*导航菜单显示方式*
//显示方式、操作
//===========================
var menuorder = function (status,handle){
    if (status!=""){
        var obj = document.getelementbyid("nav");
        var childobj = cleanwhitespaces(obj);
        var liarr = new array;
        var liwidth = new array;
        var allliw = 0;
        for (var i=0;i<childobj.length-1;i++){
            if (childobj[i].nodetype==1){
                if(i!=0){
                    liarr.push(childobj[i]);
                    liwidth.push(childobj[i].offsetwidth);
                    allliw += childobj[i].offsetwidth;
                }
            }
        }
        if(handle){
            if(document.getelementbyid("navtime")){
                obj.removechild(document.getelementbyid("navtime"));
            }
            liarr[0].style.marginleft = "0";
            for(var t=0;t<liarr.length;t++){
                liarr[t].style.width = "auto";
                liarr[t].style.textalign = "";
            }
        }
        switch (status){
            case "1"://等宽
                var maxw = math.max.apply(0,liwidth);
                for(var s=0;s<liarr.length;s++){
                    liarr[s].style.width = maxw + "px";
                    liarr[s].style.textalign = "center";
                }
                break;
            case "2"://居中
                var objwidth = obj.offsetwidth;
                var padl = (objwidth-allliw)/2;
                liarr[0].style.marginleft = padl + "px";
                if (document.all){
                    liarr[0].style.display = "inline";
                }
                break;
            case "3"://等分
                //var objwidth = obj.offsetwidth;
                var objwidth = obj.offsetwidth - obj.getelementsbytagname("li")[0].offsetwidth;
                var singlew = parseint(objwidth/liarr.length);
                for(var s=0;s<liarr.length;s++){
                    liarr[s].style.width = singlew + "px";
                    liarr[s].style.textalign = "center";
                }
                break;
                
            case "4"://等宽居中
                var maxw = math.max.apply(0,liwidth);
                for(var s=0;s<liarr.length;s++){
                    liarr[s].style.width = maxw + "px";
                    liarr[s].style.textalign = "center";
                }
                var objwidth = obj.offsetwidth - obj.getelementsbytagname("li")[0].offsetwidth;
                var padl = (objwidth-maxw*liarr.length)/2;
                liarr[0].style.marginleft = padl + "px";
                if (document.all){
                    liarr[0].style.display = "inline";
                }
                break;
            case "5"://显示时间
                var timebox = document.createelement("li");
                    timebox.id = "navtime";
                    timebox.classname = "menusel";
                    if (document.all){
                        timebox.style.stylefloat = "right";
                    }else{
                        timebox.style.cssfloat = "right";
                    }
                if(document.all){
                    obj.insertbefore(timebox,childobj[childobj.length-1]);
                }else{
                    obj.insertbefore(timebox,childobj[childobj.length-0]);
                }
                var s = new date();
                s = s.getfullyear()+"年"+(s.getmonth()+1)+"月"+s.getdate()+"日";
                document.getelementbyid("navtime").innerhtml="<h2><a href='javascript:void(0)'>今天是"+s+"</a></h2>";
                //var timeid = setinterval(runtime,1000);
                
                 break;
            case "6"://设定宽度+显示时间
            
                for(var s=0;s<liarr.length;s++){
                    liarr[s].style.width = 100 + "px";
                    liarr[s].style.textalign = "center";
                }
                var timebox = document.createelement("li");
                    timebox.id = "navtime";
                    timebox.classname = "menusel";
                    if (document.all){
                        timebox.style.stylefloat = "right";
                    }else{
                        timebox.style.cssfloat = "right";
                    }
                if(browser.ie){
                    obj.insertbefore(timebox,childobj[childobj.length-1]);
                }else{
                    obj.insertbefore(timebox,childobj[childobj.length-0]);
                }
                var s = new date();
                s = s.getfullyear()+"年"+(s.getmonth()+1)+"月"+s.getdate()+"日";
                if(document.getelementbyid("navtime")){
                    document.getelementbyid("navtime").innerhtml="<h2><a href='javascript:void(0)'>今天是"+s+"</a></h2>";
                }
                break;  
            default:
                return;
        }
    }
}

//栏目特效驱动
var coleffect = function (id,pic){
        var tags = $getobj("hidteshuid").value;
        var hdparr = new array();
            hdparr = tags.split("|");

        for(var h=0;h<hdparr.length;h++){
            if(id == hdparr[h]){
                var fheight = $getobj("slide"+hdparr[h]).style.height;
                new imgpptfilter("slide" + hdparr[h],"showtext_" + hdparr[h],"hover","normal","",fheight);
            }
        }

        if(pic && pic=="slide"){
            var gun = $getobj("hidgunlist").value;
            var gunarr = new array();
                gunarr = gun.split("|");
            for(var g=0;g<gunarr.length;g++){
                if(id == gunarr[g]){
                    var obj = $getobj("showlist_"+gunarr[g]);
                    var objw = obj.offsetwidth;
                    var objh = obj.offsetheight || obj.scrollheight;
                    //alert("offsetheight:" + obj.offsetheight +"\rclientheight:"+ obj.clientheight +"\rscrollheight:"+ obj.scrollheight);
                    new marqscroll("showlist_"+gunarr[g],0,1,objw,objh,50,0,0);
                }
            }
        }
}

//修正正文模块无内容时的空白
var repairwihitecontenth = function(){
    if($getobj("hidlayouttag").value=='2'){
        if($getobj("father").innerhtml == ""){
            $getobj("pages").classname = "nocontenth";
        }
    }else if($getobj("hidlayouttag").value=='1'){
        if($getobj("left").innerhtml == "" && $getobj("center").innerhtml == "" && $getobj("right").innerhtml == ""){
            $getobj("pages").classname = "nocontenth";
        }
    }
}