function fileQueueError(file, errorCode, message) {
	try {
		var errorName = "";
		if (errorCode == SWFUpload.QUEUE_ERROR.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:
		        break;
		    case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
		        break;
		    case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
		    case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:*/
		    default:
		        var progress = new FileProgress(file, this.customSettings.upload_target);
			    progress.setStatus(message);
                progress.setError();		
                progress.toggleCancel(false, this);
		        break;
		}

	} 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("Saving files...");
			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);
		progress.setStatus("Files Saved.");
		progress.toggleCancel(false, this);
	} 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.toggleCancel(false, this);
            
            if(file.filestatus == SWFUpload.FILE_STATUS.COMPLETE)
                progress.setStatus("Completed uploads.");
        }

        if (this.customSettings.fileList_target != null) {
            var filelist = new FileList(file, this.customSettings.fileList_target);
            filelist.addFile(file);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

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

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

}

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);
	}
}

function FileList(file, targetID) {
    this.fileListID = targetID + "_divFileList";

    this.fileListWrapper = document.getElementById(this.fileListID);
    if (!this.fileListWrapper) {
        this.fileListWrapper = document.createElement("div");
        this.fileListWrapper.className = "fileListContainer";
        this.fileListWrapper.id = this.fileListID;

	    var fileList = document.createElement("div");
	    fileList.className = "fileList";
	    this.fileListWrapper.appendChild(fileList);

	    document.getElementById(targetID).appendChild(this.fileListWrapper);
	}
}

FileList.prototype.addText = function(xtext, xclass) {
    var fileItem = document.createElement("div");
    fileItem.className = xclass;
    fileItem.appendChild(document.createTextNode(xtext));
    this.fileListWrapper.childNodes[0].appendChild(fileItem);
}

FileList.prototype.addFile = function(file) {    
    switch (file.filestatus) {
        case SWFUpload.FILE_STATUS.CANCELLED:
           this.addText("Cancelled:" + file.name, "fileListItem_cancelled");
            break;
        case SWFUpload.FILE_STATUS.ERROR:
            this.addText( file.name, "fileListItem_error");
            break;
        case SWFUpload.FILE_STATUS.COMPLETE:
            this.addText("Success:" + file.name, "fileListItem");
            break;
        default:
            /*
            SWFUpload.FILE_STATUS.QUEUED
            SWFUpload.FILE_STATUS.IN_PROGRESS
            */
            break;
    }
}
/* ******************************************
 *	FileProgress Object
 *	Control object for displaying file info
 * ****************************************** */

function FileProgress(file, targetID) {
	this.fileProgressID = targetID + "_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 ,true);
			//swfuploadInstance.stopUpload();
			return false;
		};
	}
};