function fileQueueError(file, errorCode, message) {
	try {
		if (errorCode === SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED) {
			alert("Pokušali ste poslati previše slika odjednom.\n" + (message === 0 ? "Poslali ste maksimalnu dozvoljenu količinu podataka za ovu poružbinu." : "Možete izabrati " + (message > 1 ? "do " + message + " slika." : "jedan fajl.")));
			return;
		}

		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setError();
		progress.toggleCancel(false);

		switch (errorCode) {
		case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
			progress.setStatus("Slika je previše velika.");
			this.debug("Greška: Slika je prevelika, Ime fajla: " + file.name + ", Veličina fajla: " + file.size + ", Poruka: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			progress.setStatus("Ne možete poslati fajl veličine 0 bajtova.");
			this.debug("Greška: Fajl nulte veličine, Ime fajla: " + file.name + ", Veličina fajla: " + file.size + ", Poruka: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			progress.setStatus("Nepodržan format.");
			this.debug("Greška: Ne možete poslati fajl tog formata, Ime fajla: " + file.name + ", Veličina fajla: " + file.size + ", Poruka: " + message);
			break;
		default:
			if (file !== null) {
				progress.setStatus("Nepoznata greška");
			}
			this.debug("Greška: " + errorCode + ", Ime fajla: " + file.name + ", Veličina fajla: " + file.size + ", Poruka: " + message);
			break;
		}
	} catch (ex) {
        this.debug(ex);
    }
}

function fileDialogComplete(numFilesSelected, numFilesQueued) {
	try {
		if (numFilesQueued > 0) {
			this.startUpload();
		}
		document.getElementById("preostaloSlika").innerHTML = this.getStats().files_queued ;
	} 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("Slika je poslata.");
			progress.toggleCancel(false, this);
		} else {
			progress.setStatus("Slanje slike je u toku...");
			progress.toggleCancel(true, this);
		}
	} catch (ex) {
		this.debug(ex);
	}
}

function uploadSuccess(file, serverData) {
	try {
		var progress = new FileProgress(file,  this.customSettings.upload_target);
		progress.toggleCancel(false);
		addImage(file.name);
		document.getElementById("preostaloSlika").innerHTML = this.getStats().files_queued ;
	} 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();
			document.getElementById("btnSledeci").innerHTML = '<input type="image" src="images/sledeci_korak.png" onclick="return confirmSubmit()" />';
		} else {
			var progress = new FileProgress(file,  this.customSettings.upload_target);
			progress.setComplete();
			progress.setStatus("Sve slike su primljene!");
			progress.toggleCancel(false);
			document.getElementById("btnSledeci").innerHTML = '<input type="image" src="images/sledeci_korak.png" />';
		}
	} 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("Greška pri slanju: " + message);
			this.debug("Greška: HTTP greška, Ime fajla: " + file.name + ", Poruka: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
			progress.setStatus("Slanje nije uspelo.");
			this.debug("Greška: Neuspelo slanje, Ime fajla: " + file.name + ", Veličina fajla: " + file.size + ", Poruka: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.IO_ERROR:
			progress.setStatus("IO greška na serveru.");
			this.debug("Greška: Serverska IO greška, Ime fajla: " + file.name + ", Poruka: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
			progress.setStatus("Sigurnosna greška.");
			this.debug("Greška: Sigurnosna greška, Ime fajla: " + file.name + ", Poruka: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			progress.setStatus("Ograničenje slanja prekoračeno.");
			this.debug("Greška: Ograničenje slanje prekoračeno, Ime fajla: " + file.name + ", Veličina fajla: " + file.size + ", Poruka: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_VALIDATION_FAILED:
			progress.setStatus("Neuspešna validacija. Slanje preskočeno.");
			this.debug("Greška: Neuspešna validacija, Ime fajla: " + file.name + ", Veličina fajla: " + file.size + ", Poruka: " + 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("Otkazano.");
			progress.setCancelled();
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			progress.setStatus("Zaustavljeno.");
			break;
		default:
			progress.setStatus("Nepoznata greška: " + errorCode);
			this.debug("Greška: " + errorCode + ", Ime fajla: " + file.name + ", Celičina fajla: " + file.size + ", Poruka: " + message);
			break;
		}
	} catch (ex) {
        this.debug(ex);
    }
}


function addImage(src) {
	var newImg = document.createElement("div");
	document.getElementById("primljeneSlike").appendChild(newImg);
	newImg.innerHTML = src + '<br />' ;
}

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("div");
		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;
		};
	}
};