var formChecker = null;
function swfUploadLoaded() {
	var btnSubmit = document.getElementById("btnSubmit");
	
	btnSubmit.onclick = doSubmit;
	btnSubmit.disabled = !true;
	
	/*txtLastName.onchange = validateForm;
	txtFirstName.onchange = validateForm;
	txtEducation.onchange = validateForm;
	txtReferences.onchange = validateForm;
	*/
	formChecker = window.setInterval(validateForm, 1000);
	
	validateForm();
}

function validateForm() {

	var txtFileName = document.getElementById("txtFileName");
	var isValid = true;
	if (txtFileName.value === "") {
		isValid = false;
	}
	document.getElementById("btnSubmit").disabled = !isValid;
	if (isValid===false)
	{
		document.getElementById("btnSubmit").style.display = "none";
		document.getElementById("btnSubmit_t").style.display = "";
		//document.getElementById("btnSubmit_t").focus();
	}else{
		document.getElementById("btnSubmit").style.display = "";
		document.getElementById("btnSubmit_t").style.display = "none";
		//document.getElementById("btnSubmit").focus();
	}

}

// Called by the submit button to start the upload
function doSubmit(e) {
	if (formChecker != null) {
		clearInterval(formChecker);
		formChecker = null;
	}
	
	e = e || window.event;
	if (e.stopPropagation) {
		e.stopPropagation();
	}
	e.cancelBubble = true;
	
	try {
		swfu.startUpload();
	} catch (ex) {

	}
	return false;
}

 // Called by the queue complete handler to submit the form
function uploadDone() {
	try {
		document.forms[0].submit();
	} catch (ex) {
		alert("Error submitting form");
	}
}

function fileDialogStart() {
	var txtFileName = document.getElementById("txtFileName");
	txtFileName.value = "";

	this.cancelUpload();
}



function fileQueueError(file, errorCode, message)  {
	try {
		// Handle this error separately because we don't want to create a FileProgress element for it.
		switch (errorCode) {
		case SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED:
			alert("File Type Error!\n" + (message === 0 ? "You have reached the upload limit." : "You may select " + (message > 1 ? "up to " + message + " files." : "one file.")));
			return;
		case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
			alert("File size too big!");
			this.debug("Error: File size too big!, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			alert("File is empty!");
			this.debug("Error: File is empty! File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			alert("The wrong file format!");
			this.debug("Error: The wrong file format !, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		default:
			alert("An error occurred, please try again.");
			this.debug("Error: " + errorCode + ", File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		}
	} catch (e) {
	}
}

function fileQueued(file) {
	try {
		var txtFileName = document.getElementById("txtFileName");
		txtFileName.value = file.name;
		document.getElementById("hidFileName").value = file.name;
	} catch (e) {
	}

}
function fileDialogComplete(numFilesSelected, numFilesQueued) {
	validateForm();
}

function uploadProgress(file, bytesLoaded, bytesTotal) {

	try {
		var percent = Math.ceil((bytesLoaded / bytesTotal) * 100);

		file.id = "singlefile";	// This makes it so FileProgress only makes a single UI element, instead of one for each file
		var progress = new FileProgress(file, this.customSettings.progress_target);
		progress.setProgress(percent);
		progress.setStatus("Uploading...");
	} catch (e) {
	}
}

function uploadSuccess(file, serverData) {
	try {
		file.id = "singlefile";	// This makes it so FileProgress only makes a single UI element, instead of one for each file
		var progress = new FileProgress(file, this.customSettings.progress_target);
		progress.setComplete();
		progress.setStatus("Complete.");
		progress.toggleCancel(false);
		
		if (serverData === " ") {
			this.customSettings.upload_successful = false;
		} else {
			this.customSettings.upload_successful = true;
			document.getElementById("hidFileID").value = serverData;
		}
		
	} catch (e) {
	}
}

function uploadComplete(file) {
	try {
		if (this.customSettings.upload_successful) {
			this.setButtonDisabled(true);
			uploadDone();
		} else {
			file.id = "singlefile";	// This makes it so FileProgress only makes a single UI element, instead of one for each file
			var progress = new FileProgress(file, this.customSettings.progress_target);
			progress.setError();
			progress.setStatus("File rejected");
			progress.toggleCancel(false);
			
			var txtFileName = document.getElementById("txtFileName");
			txtFileName.value = "";
			validateForm();
			alert("There was a problem with the upload.\nThe server did not accept it.");
		}
	} catch (e) {
	}
}

function uploadError(file, errorCode, message) {
	try {
		
		if (errorCode === SWFUpload.UPLOAD_ERROR.FILE_CANCELLED) {
			// Don't show cancelled error boxes
			return;
		}
		
		var txtFileName = document.getElementById("txtFileName");
		txtFileName.value = "";
		validateForm();

		// Handle this error separately because we don't want to create a FileProgress element for it.
		switch (errorCode) {
		case SWFUpload.UPLOAD_ERROR.MISSING_UPLOAD_URL:
			alert("Configuration error, the current to upload.");
			this.debug("Error: Configuration error, the current to upload. File name: " + file.name + ", Message: " + message);
			return;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			alert("Only upload one file.");
			this.debug("Error: Only upload one file. File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			break;
		default:
			alert("An error occurred in the upload. Try again later.");
			this.debug("Error: " + errorCode + ", File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		}

		file.id = "singlefile";	// This makes it so FileProgress only makes a single UI element, instead of one for each file
		var progress = new FileProgress(file, this.customSettings.progress_target);
		progress.setError();
		progress.toggleCancel(false);

		switch (errorCode) {
		case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
			progress.setStatus("Upload error");
			this.debug("Error: Upload error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
			progress.setStatus("Upload failed");
			this.debug("Error: 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: Server IO Error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
			progress.setStatus("Security error");
			this.debug("Error: Security error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
			progress.setStatus("Upload Cancelled");
			this.debug("Error: Upload Cancelled, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			progress.setStatus("Upload to stop");
			this.debug("Error: Upload to stop, File name: " + file.name + ", Message: " + message);
			break;
		}
	} catch (ex) {
	}
}