// Finlizes error message
function finalizeError(errMessage) {
	if (errMessage != "") {
		newErrMessage  = "_____________________________________________________________\n\n";
		newErrMessage += "The form was not submitted because of the following error(s).\n";
		newErrMessage += "Please correct resubmit.\n";
		newErrMessage += "_____________________________________________________________\n\n";
		newErrMessage += errMessage;
		alert(newErrMessage);
		return false;
	}
	
	return true;
}


// Validate email address
function isEmail(strValue) {
	var objRE = /^[\w-\.\']{1,}\@([\da-zA-Z-]{1,}\.){1,}[\da-zA-Z-]{2,}$/;
	return (strValue != "" && objRE.test(strValue));
}


// Validate numeric value
function isNumber(strValue) {
	return (!isNaN(strValue) && strValue != "");
}

// Validate url
function isURL(strValue) {
	return (strValue.indexOf("http://") == 0);
}


// Validate select box selection
function isSelected(objField) {
	if ((objField.multiple && objField.selectedIndex == -1) || (!objField.multiple && objField.selectedIndex == 0)) {
		return false;
	} else {
		return true;
	}
}


// Validate string value
function isString(strValue) {
	return (typeof strValue == "string" && strValue != "" && isNaN(strValue));
}


// Validate various types
function validate(arrFields) {
	var errMessage = "";
	
	for (var i = 0; i < arrFields.length; i++) {
		var isValid = true;
		// arrTheField: [label, id, type, required]
		var arrTheField = arrFields[i].split("|");
		var strLabel = arrTheField[0];
		var objField = document.getElementById(arrTheField[1]);
		var strType = arrTheField[2];
		var req = arrTheField[3];
		
		// Check if field is required or not required and not empty
		if (req == "true" || (req == "false" && objField.value != "")) {
			switch (strType) {
				case "string":
					isValid = isString(objField.value.replace(/^\s*|\s*$/g, ''));
					break;
				case "number":
					isValid = isNumber(objField.value);
					break;
				case "email":
					isValid = isEmail(objField.value);
					break;
				case "select":
					isValid = isSelected(objField);
					break;
				case "url":
					isValid = isURL(objField.value);
					break;
				case "any":
					isValid = (objField.value == "" ? false : true);
					break;
				default:
					isValid = true;
			}
		}
		
		// If field is invalid, add to error message
		if (!isValid) { errMessage += "- " + strLabel + " is missing or invalid.\n"; }
	}
	
	return errMessage;
}