/*//菜单
function menuFix() {
    var sfEls = document.getElementById("nav").getElementsByTagName("li");
    for (var i=0; i<sfEls.length; i++) {
        sfEls[i].onmouseover=function() {
            this.className+=(this.className.length>0? " ": "") + "sfhover";
        }
        sfEls[i].onMouseDown=function() {
            this.className+=(this.className.length>0? " ": "") + "sfhover";
        }
        sfEls[i].onMouseUp=function() {
            this.className+=(this.className.length>0? " ": "") + "sfhover";
        }
        sfEls[i].onmouseout=function() {
            this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"),"");
        }
    }
}
*/

//列表收缩
function changeList(listName){
    var obj = document.getElementById(listName);
    if(obj.style.display=="none"){
        obj.style.display="block"
    }else{
        obj.style.display="none"
    }
}

    //产品图片列表
    var autoNum = 0;
    var autoSpeed = 2000;
    var autoArr = null;
    var intTimeStep=20;
    var isIe=(window.ActiveXObject)?true:false;
    var intAlphaStep=(isIe)?5:0.05;
    var curSObj=null;
    var curOpacity=null;
    var curUri = "";
    function startObjVisible(iuri)
    {
        var uri = iuri.replace("url(","").replace(")","");
        //alert(uri);return;
        //获取应用效果层
        //curSObj=document.getElementById(objId);
        curSObj=document.getElementById('objDiv');
        curUri=uri;
        
        setObjState();
    }

    function gotoOpacity(){
        
    }

    function setObjState()
    {
        if (curSObj.style.display=="block"){
            //隐藏
            curOpacity=1;
            setObjClose();
        }
        else{
            if(isIe)
            {
                //curSObj.style.cssText='DISPLAY: none;Z-INDEX: 1; FILTER: alpha(opacity=0); POSITION: absolute;';
                curSObj.style.cssText='DISPLAY: none; FILTER: alpha(opacity=0);';
                curSObj.filters.alpha.opacity=0;
            }else
            {
                curSObj.style.opacity=0
            }
            curSObj.style.display="block";
            curOpacity=0;
            setObjOpen();
        }
    }
    //显示
    function setObjOpen()
    {
        if(isIe)
        {
            curSObj.filters.alpha.opacity+=intAlphaStep;
            if (curSObj.filters.alpha.opacity<100){
                setTimeout('setObjOpen()',intTimeStep);
            }
        }else{
            curOpacity+=intAlphaStep;
            curSObj.style.opacity =curOpacity;
            if (curOpacity<1){
                setTimeout('setObjOpen()',intTimeStep);
            }
        }
    }
    //隐藏
    function setObjClose()
    {
        if(isIe)
        {
            curSObj.filters.alpha.opacity-=intAlphaStep;
            if (curSObj.filters.alpha.opacity>0) {
                setTimeout('setObjClose()',intTimeStep);
            }
            else {
                curSObj.style.display="none";
                //alert("完成隐藏");
                //更换图片
                document.getElementById('objImg').src = curUri;
                setObjState();
            }
        }else{
            curOpacity-=intAlphaStep;
            if (curOpacity>0) {
                curSObj.style.opacity =curOpacity;
                setTimeout('setObjClose()',intTimeStep);
            }
            else {
                curSObj.style.display="none";
                //alert("完成隐藏");
                //更换图片
                document.getElementById('objImg').src = curUri;
                setObjState();
            }
        }
    }
    
    //自动播放[图片数组][播放速度]
    function autoPlay(arr,sp){
        autoArr = arr;
        autoSpeed = sp;
        if(autoArr.length>0){
            //gotuPlay();
            setInterval("gotuPlay()",autoSpeed);
        }
    }
    //播放
    function gotuPlay(){
        //是否超过数组
        if(autoNum>=autoArr.length){
            autoNum = 0;
        }
        //alert(autoArr[autoNum]);
        startObjVisible(autoArr[autoNum]);
        autoNum++;
        //setInterval("gotuPlay()",autoSpeed);
    }