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

function validateForm() {
	if(!$('#name').val() || !$('#contact').val() || !$('#describe').val() || !$('#txtFileName').val()){
		$('#btnSubmit').attr('disabled','disabled').val('请完成表单的填写');
	} else {
		$('#btnSubmit').removeAttr('disabled').val('现在提交');
	}
	return true;
}

// 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("You have attempted to queue too many files.\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("The file you selected is too big.");
			this.debug("Error Code: File too big, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			alert("The file you selected is empty.  Please select another file.");
			this.debug("Error Code: Zero byte file, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			alert("The file you choose is not an allowed file type.");
			this.debug("Error Code: Invalid File Type, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			return;
		default:
			alert("An error occurred in the upload. Try again later.");
			this.debug("Error Code: " + 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;
	} 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 uploadStart(file) {
	try {
		/* I don't want to do any file validation or anything, I'll just update the UI and
		return true to indicate that the upload should start.
		It's important to update the UI here because in Linux no uploadProgress events are called. The best
		we can do is say we are uploading.
		*/
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setStatus("Uploading...");
		progress.toggleCancel(true, this);
	}
	catch (ex) {}
	
	return true;
}

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("There was a configuration error.  You will not be able to upload a resume at this time.");
			this.debug("Error Code: No backend file, File name: " + file.name + ", Message: " + message);
			return;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			alert("You may only upload 1 file.");
			this.debug("Error Code: Upload Limit Exceeded, 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 Code: " + 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 Code: HTTP Error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
			progress.setStatus("Upload Failed.");
			this.debug("Error Code: 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 Code: IO Error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
			progress.setStatus("Security Error");
			this.debug("Error Code: Security Error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
			progress.setStatus("Upload Cancelled");
			this.debug("Error Code: Upload Cancelled, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			progress.setStatus("Upload Stopped");
			this.debug("Error Code: Upload Stopped, File name: " + file.name + ", Message: " + message);
			break;
		}
	} catch (ex) {
	}
}