function fileQueueError(file, errorCode, message) {
    try {
        var progress = new FileProgress(file,  this.customSettings.upload_target);
        var errorName = "";

        switch (errorCode) {
            case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
                errorName = "Zero-byte file ...";
            break;
            case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
                errorName = "File is too big ...";
            break;
            case SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED:
                errorName = "You can only choose one file at the time ...";
            break;
            case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
                errorName = "Invalid file type ...";
            default:
                break;
        }
        if (errorName !== "") {
            progress.setStatus(errorName);
        }
        progress.toggleCancel(false, this);
    } catch (ex) {
        this.debug(ex);
    }
}

function fileDialogComplete(numFilesSelected, numFilesQueued) {
    try {
        if (numFilesQueued > 0) {
            this.startUpload();
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadProgress(file, bytesLoaded) {
    try {
        var percent = Math.ceil((bytesLoaded / file.size) * 100);

        var progress = new FileProgress(file,  this.customSettings.upload_target);
        progress.setProgress(percent);
        if (percent === 100) {
            progress.setStatus("Creating thumbnail...");
            progress.toggleCancel(false, this);
        } else {
            progress.setStatus("Uploading...");
            progress.toggleCancel(true, this);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadSuccess(file, serverData) {
    try {
        var progress = new FileProgress(file,  this.customSettings.upload_target);

        if (serverData.substring(0, 7) === "FILEID:") {
            addImage(serverData.substring(7));
            progress.setStatus("Profile image uploaded.");
            progress.toggleCancel(false);
        } else {
            progress.setStatus("Error.");
            progress.toggleCancel(false);
            alert(serverData);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadComplete(file) {
    try {
        /*  I want the next upload to continue automatically so I'll call startUpload here */
        if (this.getStats().files_queued > 0) {
            this.startUpload();
        } else {
            var progress = new FileProgress(file,  this.customSettings.upload_target);
            progress.setComplete();
            progress.setStatus("Image saved.");
            progress.toggleCancel(false);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadError(file, errorCode, message) {
    try {
        var progress = new FileProgress(file, this.customSettings.progressTarget);
        progress.setError();
        progress.toggleCancel(false);

        switch (errorCode) {
        case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
            progress.setStatus("Upload Error: " + message);
            this.debug("Error Code: HTTP Error, File name: " + file.name + ", Message: " + message);
            break;
        case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
            progress.setStatus("Upload Failed.");
            this.debug("Error Code: Upload Failed, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
            break;
        case SWFUpload.UPLOAD_ERROR.IO_ERROR:
            progress.setStatus("Server (IO) Error");
            this.debug("Error Code: IO Error, File name: " + file.name + ", Message: " + message);
            break;
        case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
            progress.setStatus("Security Error");
            this.debug("Error Code: Security Error, File name: " + file.name + ", Message: " + message);
            break;
        case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
            progress.setStatus("Upload limit exceeded.");
            this.debug("Error Code: Upload Limit Exceeded, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
            break;
        case SWFUpload.UPLOAD_ERROR.FILE_VALIDATION_FAILED:
            progress.setStatus("Failed Validation.  Upload skipped.");
            this.debug("Error Code: File Validation Failed, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
            break;
        case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
            // If there aren't any files left (they were all cancelled) disable the cancel button
            if (this.getStats().files_queued === 0) {
                //document.getElementById(this.customSettings.cancelButtonId).disabled = true;
            }
            progress.setStatus("Cancelled");
            progress.setCancelled();
            break;
        case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
            progress.setStatus("Stopped");
            break;
        default:
            progress.setStatus("Unhandled Error: " + errorCode);
            this.debug("Error Code: " + errorCode + ", File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
            break;
        }
    } catch (ex3) {
        this.debug(ex3);
    }
}

function addImage(src) {
    var newImg = document.getElementById("profile_pic");

    if (newImg.filters) {
        try {
            newImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;
        } catch (e) {
            // If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
            newImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';
        }
    } else {
        newImg.style.opacity = 0;
    }

    newImg.onload = function () {
        fadeIn(newImg, 0);
    };

    newImg.src = src;
}

function fadeIn(element, opacity) {
    var reduceOpacityBy = 5;
    var rate = 30;  // 15 fps

    if (opacity < 100) {
        opacity += reduceOpacityBy;
        if (opacity > 100) {
            opacity = 100;
        }

        if (element.filters) {
            try {
                element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = opacity;
            } catch (e) {
                // If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
                element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';
            }
        } else {
            element.style.opacity = opacity / 100;
        }
    }

    if (opacity < 100) {
        setTimeout(function () {
            fadeIn(element, opacity);
        }, rate);
    }
}

/* ******************************************
 *  FileProgress Object
 *  Control object for displaying file info
 * ****************************************** */

function FileProgress(file, targetID) {
    this.fileProgressID = "divFileProgress";

    this.fileProgressWrapper = document.getElementById(this.fileProgressID);
    if (!this.fileProgressWrapper) {
        this.fileProgressWrapper = document.createElement("div");
        this.fileProgressWrapper.className = "progressWrapper";
        this.fileProgressWrapper.id = this.fileProgressID;

        this.fileProgressElement = document.createElement("div");
        this.fileProgressElement.className = "progressContainer";

        var progressCancel = document.createElement("a");
        progressCancel.className = "progressCancel";
        progressCancel.href = "#";
        progressCancel.style.visibility = "hidden";
        progressCancel.appendChild(document.createTextNode(" "));

        var progressText = document.createElement("div");
        progressText.className = "progressName";
        progressText.appendChild(document.createTextNode(file.name));

        var progressBar = document.createElement("div");
        progressBar.className = "progressBarInProgress";

        var progressStatus = document.createElement("div");
        progressStatus.className = "progressBarStatus";
        progressStatus.innerHTML = "&nbsp;";

        this.fileProgressElement.appendChild(progressCancel);
        this.fileProgressElement.appendChild(progressText);
        this.fileProgressElement.appendChild(progressStatus);
        this.fileProgressElement.appendChild(progressBar);

        this.fileProgressWrapper.appendChild(this.fileProgressElement);

        document.getElementById(targetID).appendChild(this.fileProgressWrapper);
        fadeIn(this.fileProgressWrapper, 0);

    } else {
        this.fileProgressElement = this.fileProgressWrapper.firstChild;
        this.fileProgressElement.childNodes[1].firstChild.nodeValue = file.name;
    }

    this.height = this.fileProgressWrapper.offsetHeight;

}
FileProgress.prototype.setProgress = function (percentage) {
    this.fileProgressElement.className = "progressContainer green";
    this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
    this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {
    this.fileProgressElement.className = "progressContainer blue";
    this.fileProgressElement.childNodes[3].className = "progressBarComplete";
    this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setError = function () {
    this.fileProgressElement.className = "progressContainer red";
    this.fileProgressElement.childNodes[3].className = "progressBarError";
    this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setCancelled = function () {
    this.fileProgressElement.className = "progressContainer";
    this.fileProgressElement.childNodes[3].className = "progressBarError";
    this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setStatus = function (status) {
    this.fileProgressElement.childNodes[2].innerHTML = status;
};

FileProgress.prototype.toggleCancel = function (show, swfuploadInstance) {
    this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
    if (swfuploadInstance) {
        var fileID = this.fileProgressID;
        this.fileProgressElement.childNodes[0].onclick = function () {
            swfuploadInstance.cancelUpload(fileID);
            return false;
        };
    }
};