flash 图片切换效果代码

function fadeTPl_1(co, no)
{
    currPicObj = co;
    nextPicObj = no;
    fadingLoop = setInterval(function ()
    {
        if (nextPicObj._alpha >= 100 && currentPic._alpha <= 0)
        {
            clearInterval(fadingLoop);
            currentPic = nextPic;
            isFading = false;
            return(undefined);
        } // end if
        currPicObj._alpha = currPicObj._alpha - 10;
        nextPicObj._alpha = nextPicObj._alpha + 10;
    }, 50);
} // End of the function
function getData()
{
    var xmlObj = new XML();
    xmlObj.load("xml/xml.xml");
    xmlObj.ignoreWhite = true;
    xmlObj.onLoad = function (success)
    {
        fixData(xmlObj);
    };
} // End of the function
function fixData(o)
{
    var _l1 = 0;
    while (_l1 < o.firstChild.childNodes.length)
    {
        preLoadPic(_l1, o.firstChild.childNodes[_l1].childNodes[2].firstChild);
        arrUrl.push(o.firstChild.childNodes[_l1].childNodes[1].firstChild);
        arrTitle.push(o.firstChild.childNodes[_l1].childNodes[0].firstChild);
        _l1++;
    } // end while
    linkbutton.onRelease = function ()
    {
        getURL(arrUrl[0], "_blank");
    };
    btn1_mc.gotoAndStop(2);
} // End of the function
function preLoadPic(i, u)
{
    i++;
    eval("img" + i + "_mc").loadMovie(u);
    checkPicLoad(i, eval("img" + i + "_mc"));
} // End of the function
function checkPicLoad(i, o)
{
    o.onEnterFrame = function ()
    {
        if (int(o.getBytesLoaded() / o.getBytesTotal() * 100) >= 100)
        {
            eval("btn" + i + "_mc")._visible = true;
            delete o["onEnterFrame"];
        } // end if
    };
} // End of the function
function start()
{
    getData();
} // End of the function
function checkFade()
{
    var i = 1;
    while (i < 5)
    {
        if (eval("btn" + i + "_mc")._visible == false)
        {
            return(undefined);
        } // end if
        i++;
    } // end while
    clearInterval(picLoadLoop);
    startFade();
} // End of the function
function startFade()
{
    playerPlay();
} // End of the function
function picFade()
{
    nextPic = currentPic == 4 ? (1) : (parseInt(currentPic) + 1);
    loadFadeTpl(eval("img" + currentPic + "_mc"), eval("img" + nextPic + "_mc"));
} // End of the function
function loadFadeTpl(co, no)
{
    isFading = true;
    linkbutton.onRelease = function ()
    {
        getURL(arrUrl[nextPic - 1], "_blank");
    };
    setButtonColor();
    fadeTPl_1(co, no);
} // End of the function
function setButtonColor()
{
    var i = 1;
    while (i < 5)
    {
        eval("btn" + i + "_mc").gotoAndStop(1);
        i++;
    } // end while
    eval("btn" + nextPic + "_mc").gotoAndStop(2);
} // End of the function
function setCurrPic(cp)
{
    if (currentPic == cp)
    {
        return(undefined);
    } // end if
    if (isFading == false)
    {
        playerStop();
        nextPic = cp;
        loadFadeTpl(eval("img" + currentPic + "_mc"), eval("img" + nextPic + "_mc"));
    }
    else
    {
        trace(isFading);
    } // end if
} // End of the function
function playPrePic()
{
    playerStop();
    nextPic = currentPic == 1 ? (4) : (parseInt(currentPic) - 1);
    loadFadeTpl(eval("img" + currentPic + "_mc"), eval("img" + nextPic + "_mc"));
} // End of the function
function playNextPic()
{
    playerStop();
    picFade();
} // End of the function
function playerStop()
{
    _root.player_mc.gotoAndStop(1);
    clearInterval(fadeLoop);
} // End of the function
function playerPlay()
{
    _root.player_mc.gotoAndStop(2);
    fadeLoop = setInterval(picFade, 4000);
} // End of the function
stop();
Stage.scaleMode = "noScale";
Stage.showMenu = false;
System.useCodepage = false;
var picLoadLoop;
var fadeLoop;
var currentPic = 1;
var nextPic;
var arrUrl = [];
var arrTitle = [];
var isFading = false;
var fadingLoop;
var currPicObj;
var nextPicObj;
picLoadLoop = setInterval(checkFade, 500);
start();