function fadeOut(objectid, timing) {
    dojo.fadeOut({node: dojo.byId(objectid), duration: timing}).play();
}


function fadeIn(objectid, timing) {
    dojo.require("dojo.fx");
    dojo.fadeIn({node: dojo.byId(objectid), duration: timing}).play();
}


function wipeIn(objectid, timing) {
    dojo.require("dojo.fx");
    dojo.fx.wipeIn({node: dojo.byId(objectid), duration: timing}).play();
}


function wipeOut(objectid, timing) {
    dojo.require("dojo.fx");
    dojo.fx.wipeOut({node: dojo.byId(objectid), duration: timing}).play();
}

function changeImg(imgId, timing, srcs, called, order, co, link, linkdata, linkid, stats) {
    var mimg = document.getElementById(imgId);
    var isimg = true;
    var imgnumber;
    if (link == '1') {
        var href = '';
        var title = '';
        var target = '';
    }

    var node = mimg.getElementsByTagName("img");
    var srcimg = node[0].getAttribute("src");
    if (order) {
        imgnumber = getNewImgByOrder(co, srcs);
        var newsrc = srcs[imgnumber];
    } else {
        imgnumber = getNewImg(imgId, srcs);
        var newsrc = srcs[imgnumber];
    }

    if (link == '1') {
        imgnumber *= 3;
        var href = linkdata[imgnumber];
        var target = linkdata[imgnumber+1];
        var title = linkdata[imgnumber+2];
    }

    if (stats) {
        var murl = "handle.php?module=banner&banid=" + newsrc;
        xcallNoHandler(murl);
    }

    if (srcimg == "undefined") isimg = false;

    if (called == "fade") {
        dojo.fx.chain([
            dojo.fadeOut({ node: dojo.byId(imgId), duration: timing,
                onEnd: dojo.hitch(this,function() {
                    if (isimg) {
                        node[0].setAttribute("src", newsrc);
                    }
                })
            }),
            dojo.fadeIn({ node: dojo.byId(imgId), duration: timing })
        ]).play();
    } else if (called == "slide") {
        dojo.fx.chain([
            dojo.fx.wipeOut({ node: dojo.byId(imgId), duration: timing,
                onEnd: dojo.hitch(this,function() {
                    if (isimg) {
                        node[0].setAttribute("src", newsrc);
                    }
                })
            }),
            dojo.fx.wipeIn({ node: dojo.byId(imgId), duration: timing })
        ]).play();
    } else if (called == "fadeTogether") {
        tmp = document.createElement("div");
        var nameForDiv = "newdiw" + imgId;
        tmp.setAttribute("id", nameForDiv);

        var dimension = findPos(mimg);
        tmp.style.position = "absolute";
        tmp.style.top = "0px";
        tmp.style.left = "0px";

        tmpwidth  = node[0].getAttribute("width");
        tmpheight = node[0].getAttribute("height");

        var oldsrc = node[0].getAttribute("src");
        var timp   = document.createElement("img");
        var browser = navigator.appName;
        timp.setAttribute("src", oldsrc);
        timp.setAttribute("alt", oldsrc);
        timp.setAttribute("id", "temporary");
        timp.setAttribute("width", tmpwidth);
        timp.setAttribute("height", tmpheight);
        tmp.appendChild(timp);
        mimg.parentNode.appendChild(tmp);

        node[0].setAttribute("src", newsrc);

        dojo.fadeOut({ node: dojo.byId(nameForDiv), duration: timing,
                onEnd: dojo.hitch(this,function() {
                    var rem = document.getElementById(nameForDiv);
                    mimg.parentNode.removeChild(rem);
                })
        }).play();
    }

    // zmeneni hrefu, titlu a targetu podle potreby
    if (link == '1') {
        var lid = document.getElementById(linkid);
        lid.href = href;
        lid.target = target;
        lid.title = title;
    }
}


function findPos(obj) {
    var curleft = curtop = 0;
    obj = obj.getElementsByTagName("img");
    obj = obj[0];
    if (obj.offsetParent) {
        curleft = obj.offsetLeft;
        curtop = obj.offsetTop;
        while (obj = obj.offsetParent) {
            curleft += obj.offsetLeft;
            curtop += obj.offsetTop;
        }
    }
    // v ie to odskakovalo, tak je to vyreseno
    var browser = navigator.appName;
    if (browser == "Microsoft Internet Explorer") {
        curleft++;
        curtop++;
    }
    return [curleft,curtop];
}


function getNewImgByOrder(co, srcs) {
    count = (srcs.length)-1;
    if (orderArray[co] == count) {
        orderArray[co] = -1;
    }

    orderArray[co]++;

    return orderArray[co];
}


function getNewImg(imgId, srcs) {
    var mimg = document.getElementById(imgId);
    var node = mimg.getElementsByTagName("img");
    var old = node[0].getAttribute("src");
    var count = -1;
    var current;
    var num;

    for (src in srcs) {
        count++;
    }

    num = Math.random();
    num = count*num;
    current = Math.round(num);

    if (current > count) {
        current = 0;
    }

    var li = old.lastIndexOf("/");
    var old = old.substring(li);

    var currentstr = srcs[current];
    var li = currentstr.lastIndexOf("/");
    var currentstr = currentstr.substring(li, currentstr.length);

    // aby se obrazky neopakovaly.
    if ( old == currentstr ) {
        current++;
    }

    if (current > count) {
        current = 0;
    }

    return current;
}


function changeImgByPeriod(imgId, timing, srcs, period, order, co, effect, link, linkdata, execute, stats) {
    window.setTimeout("changeImgByPeriod('"+imgId+"',"+timing+",\'"+srcs+"\',"+period+",\'"+order+"\', '"+co+"', '"+effect+"', '"+link+"', \'"+linkdata+"\', 'true', '"+stats+"')", period);
    if (execute) {
        eval("changeImg('"+imgId+"', "+timing+", "+srcs+",'"+effect+"', "+order+", '"+co+"', '"+link+"',"+linkdata+", \'"+linkdata+"\', '"+stats+"')");
    }
}