function fileQueueError( file, errorCode, message ) 
{
	try {
		var errorName = "";
		if( errorCode === SWFUpload.errorCode_QUEUE_LIMIT_EXCEEDED ) 
		{
			errorName = "Вы пытаетесь добавить слишком много файлов! Разделите из пожалуйста на несколько топиков.";
		}

		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:
				alert( message );
			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 
	{
		$( this.customSettings.upload_target ).style.display = 'block';
		$( this.customSettings.explain_span ).style.visibility = 'hidden';

		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( "Обрабатываем изображение..." );
			progress.toggleCancel(false, this);
		} 
		else
		{
			progress.setStatus( "Закачиваем на сервер..." );
			progress.toggleCancel( true, this );
		}
	} 
	catch( ex ) 
	{
		this.debug( ex );
	}
}

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

		var upload = eval( serverData );
		
		if( upload.sText ) 
		{
			lsPanel.putText( this.customSettings.text_target, upload.sText, false );

			progress.setStatus( "Изображение обработано." );
			progress.toggleCancel( false );
		} 
		else
		{
			progress.setStatus( upload.sMsg );
			progress.toggleCancel( false );
			alert( upload.sMsg );
		}
	} 
	catch( ex ) 
	{
		this.debug( ex );
	}
}

function uploadComplete( file ) 
{
	try
	{
		if( this.getStats().files_queued > 0 ) 
		{
			this.startUpload();
		}
		else
		{
			var progress = new FileProgress( file,  this.customSettings.upload_target );
			progress.setComplete();
			progress.setStatus( "Готово." );
			progress.toggleCancel( false );
			$( this.customSettings.upload_target ).style.display = 'none';
			$( this.customSettings.explain_span ).style.visibility = 'visible';
			hideImgUploadForm();
		}
	} 
	catch( ex ) 
	{
		this.debug( ex );
	}
}

function uploadError( file, errorCode, message ) 
{
	var progress;
	try
	{
		switch( errorCode ) 
		{
			case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
				try
				{
					progress = new FileProgress( file,  this.customSettings.upload_target );
					progress.setCancelled();
					progress.setStatus( "Файл пропущен." );
					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( "Остановлено." );
					progress.toggleCancel( true );
				}
				catch( ex2 ) 
				{
					this.debug( ex2 );
				}
				
				case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
				break;

				default:
					alert( message );
				break;
		}
	} 
	catch( ex3 ) 
	{
		this.debug( ex3 );
	}

}


/*depricated*/ 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 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 ugreen";
	this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
	this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {
	this.fileProgressElement.className = "progressContainer ublue";
	this.fileProgressElement.childNodes[3].className = "progressBarComplete";
	this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setError = function () {
	this.fileProgressElement.className = "progressContainer ured";
	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;
		};
	}
};