function uploadFileStart(file) {
        if(document.getElementById('gallery').checked == true) {
                this.addPostParam('gallery',document.getElementById('gallery').value);
        }
        this.addPostParam('resize',document.uploadForm.resize.options[document.uploadForm.resize.selectedIndex].value);
        if(document.getElementById('public').checked == true) {
                this.addPostParam('public','public');
        } else if(document.getElementById('private').checked == true) {
                this.addPostParam('public','private');
        } else {
                if(confirm(messageOne)) {
                        this.addPostParam('public','public');
                        document.getElementById('public').checked = 'checked';
                } else {
                        this.addPostParam('public','private');
                        document.getElementById('private').checked = 'checked';
                }
        }
        return true;
}

function fileQueueError(file, errorCode, message) {
        try {
                var imageName = "error.gif";
                var errorName = "";
                if (errorCode === SWFUpload.errorCode_QUEUE_LIMIT_EXCEEDED) {
                        errorName = "You have attempted to queue too many files.";
                }

                if (errorName !== "") {
                        alert(errorName);
                        return;
                }

                switch (errorCode) {
                case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
                        imageName = "zerobyte.gif";
                        break;
                case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
                        imageName = "toobig.gif";
                        break;
                case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
                case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
                default:
                        alert(message);
                        break;
                }

                addImage("env/" + imageName);

        } 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(messageCreating);
                        progress.toggleCancel(false, this);
                } else {
                        progress.setStatus(messageUploading + percent + '%');
                        progress.toggleCancel(true, this);
                }
        } catch (ex) {
                this.debug(ex);
        }
}

function uploadSuccess(file, serverData) {

        try {
                addAnotherImage(serverData);

                var progress = new FileProgress(file,  this.customSettings.upload_target);

                progress.setStatus(messageCreated);
                progress.toggleCancel(false);


        } 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(messageReceived);
                        progress.toggleCancel(false);
                }
        } catch (ex) {
                this.debug(ex);
        }
}

function uploadError(file, errorCode, message) {
        var imageName =  "error.gif";
        var progress;
        try {
                switch (errorCode) {
                case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
                        try {
                                progress = new FileProgress(file,  this.customSettings.upload_target);
                                progress.setCancelled();
                                progress.setStatus("Cancelled");
                                progress.toggleCancel(false);
                        }
                        catch (ex1) {
                                this.debug(ex1);
                        }
                        break;
                case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
                        try {
                                progress = new FileProgress(file,  this.customSettings.upload_target);
                                progress.setCancelled();
                                progress.setStatus("Stopped");
                                progress.toggleCancel(true);
                        }
                        catch (ex2) {
                                this.debug(ex2);
                        }
                case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
                        imageName = "uploadlimit.gif";
                        break;
                default:
                        alert(message);
                        break;
                }

                addImage("env/" + imageName);

        } catch (ex3) {
                this.debug(ex3);
        }

}


function addImage(src) {
        var newImg = document.createElement("img");
        newImg.style.margin = "5px";

        document.getElementById("thumbnails").appendChild(newImg);
        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 addAnotherImage(serverData) {
        serverData = serverData.replace('\\','');
        var thumbs = makeThumbs(serverData);
        document.getElementById('r').innerHTML = thumbs + document.getElementById('r').innerHTML;
        return true;
}


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;
                };
        }
};