var message = "";

function submit_form()
{
	message = "";
	
	// Text fields
	for (var i = 0; i < textFields.length; i ++)
	{
		var field = textFields[i][0];
		var textField = document.getElementById(field);
		if (textField.value == "")
		{
			message += "Please enter your " + friendly(textFields[i][1]) + ".\n\n";
		}
	}
	
	// Choose fields
	for (var j = 0; j < chooseFields.length; j ++)
	{
		var field = chooseFields[j][0];
		var chooseField = document.getElementById(field);
		if (chooseField.value == "Please select..." || chooseField.value == "")
		{
			message += "Please select " + friendly(chooseFields[j][1]) + ".\n\n";
		}
	}
	
	// File fields
	for (var j = 0; j < fileFields.length; j ++)
	{
		var field = fileFields[j][0];
		var fileField = document.getElementById(field);
		if (fileField.value == "")
		{
			message += "Please supply " + friendly(fileFields[j][1]) + ".\n\n";
		}
	}
	
	// Document specific fields
	documentSpecific();
}

function friendly(fieldName)
{
	// Remove _ like in thumbnail_hidden
	return fieldName.replace("_", " ");
}