// JScript 文件
function TFly_Init(name, offsetLeft, offsetTop, alignment, anyIter, anyTime, staticHover, popupHover, popupLatency, hideLatency, onInit, onPopup, onHide)
{
    var TFly = document.getElementById(name);
    TFly.DT = document.getElementById(name + "_Popup"); // 显示内容对象
    TFly.F = document.getElementById(name + "_Anim"); // 动画效果对象
    TFly.oX = offsetLeft;
    TFly.oY = offsetTop;
    TFly.alignment = alignment;
    TFly.AnyIter = anyIter;
    TFly.AnyTime = anyTime;

    TFly.popupLatency = popupLatency;
    TFly.hideLatency = hideLatency;
    TFly.onPopup = onPopup;
    TFly.onHide = onHide;

    TFly.onmouseover = function()
    {
        if (staticHover != '')  // 替换样式，并储存原来的样式
        {
            TFly.className_ = TFly.className;
            TFly.className = staticHover;
        }
        TFly_Popup(TFly, true);
    }

    TFly.onmouseout = function() 
    {
        if (staticHover != '')  // 恢复原来的样式 
        { 
            TFly.className = TFly.className_;
        }
        TFly_Popup(TFly, false);
    }

    if (document.all) 
    {
        TFly.onactivate = TFly.onmouseover;
        TFly.ondeactivate = TFly.onmouseout;
    } 
    else 
    {
        TFly.onfocus = TFly.onmouseover;
        TFly.onblur = TFly.onmouseout;
    }

    TFly.DT.onmouseover = function() 
    {
        if (popupHover != '') 
        {
            TFly.DT.className_ = TFly.DT.className;
            TFly.DT.className = popupHover;
        }
        TFly_Popup(TFly, true);
    }

    TFly.DT.onmouseout = function() 
    {
        if (popupHover != '') 
        {
            TFly.DT.className = TFly.DT.className_;
        }
        TFly_Popup(TFly, false);
    }

    TFly_CallClientFunction(onInit, TFly);
}

// 调用初始化程序
function TFly_CallClientFunction(name, TFly) 
{
    if (name != null && name != "")
        eval(name + "(TFly);");
}

// 定位
function TFly_SetPosition(TFly, obj) 
{
    obj.style.top = TFly.oY + TFly.offsetHeight + "px";
    obj.style.left = TFly.oX + (TFly.offsetWidth - obj.offsetWidth ) * (1 + TFly.alignment) / 2 + "px";
}

function TFly_Popup(TFly, value) 
{
    if (TFly.timer != null) window.clearTimeout(TFly.timer); // 清除超时
    if (value) // 判断状态
    { 
        if (TFly.status == "on") return;
        // 如果 popup 已经显示，则显示延时为 0
        // 例如从一个菜单移动到另外一个菜单
        var timeout = (TFly.status == "active") ? 0 : TFly.popupLatency;
        if (TFly.AnyIter > 0 && TFly.AnyTime > 0)
            TFly.timer = window.setTimeout(function() {TFly_AnimateStart(TFly, true, TFly.F.curIter);}, timeout);
        else
            TFly.timer = window.setTimeout(function() {TFly_SetVisibility(TFly, true);}, timeout);
    } 
    else 
    {
        if (TFly.status == "off") 
            return;
        var timeout = (TFly.status == "active") ? 0 : TFly.hideLatency;
        if (TFly.AnyIter > 0 && TFly.AnyTime > 0)
            TFly.timer = window.setTimeout(function() {TFly_AnimateStart(TFly, false, TFly.F.curIter);}, timeout);
        else
            TFly.timer = window.setTimeout(function() {TFly_SetVisibility(TFly, false);}, timeout);
    }
}

// 设置弹出内容的可见性
function TFly_SetVisibility(TFly, value) 
{
    if (value == true) 
    {
        TFly_SetPosition(TFly, TFly.DT);
        TFly.DT.style.visibility = "visible";
        TFly.style.zIndex = "999";
    } 
    else 
    {
        TFly.DT.style.visibility = "hidden";
        TFly.style.zIndex = "0";
        TFly.DT.style.left = "-10000px";
    }
}

function TFly_AnimateStart (TFly, inout, curIter) 
{
    if (TFly.F.timer != null) window.clearTimeout(TFly.F.timer);
    if (curIter == null) curIter=0;
    if (TFly.status != "active") 
    {
        TFly.status = "active";
        TFly.F.style.visibility = "visible";
        TFly.DT.style.visibility = "hidden";
    }
    if (curIter < 0 || curIter > TFly.AnyIter) 
    {
        TFly.F.curIter = (curIter < 1) ? 0 : TFly.AnyIter;
        TFly.status = (TFly.F.curIter == TFly.AnyIter) ? "on": "off";
        TFly.F.style.visibility = "hidden";
        TFly_SetPosition(TFly, TFly.DT);
        TFly.style.zIndex = (TFly.F.curIter == TFly.AnyIter) ? "999" : "0";
        if (TFly.F.curIter == TFly.AnyIter) 
        {
            TFly.status = "on";
            TFly_SetVisibility(TFly, true);
            TFly_CallClientFunction(TFly.onPopup, TFly);
        } 
        else 
        {
            TFly.status = "off";
            TFly_SetVisibility(TFly, false);
            TFly_CallClientFunction(TFly.onHide, TFly);
        }
    } 
    else 
    {
            var per = curIter * (95 / TFly.AnyIter) + 5;
            TFly.F.style.visibility = "hidden";
            TFly.F.style.width = TFly.DT.offsetWidth / 100 * per + "px";
            TFly.F.style.height = TFly.DT.offsetHeight / 100 * per + "px";
            TFly_SetPosition(TFly, TFly.F);
            TFly.F.style.visibility = "visible";
            var timeout = (per == 100 ) ? 0 : TFly.AnyTime - (TFly.AnyTime / (TFly.AnyIter) * (curIter));
            curIter += (inout) ? 1 : -1;
            TFly.F.timer = window.setTimeout(function() {TFly_AnimateStart(TFly, inout, curIter)}, timeout);
            TFly.F.curIter = curIter;
    }
}