function validateEmail(email_address) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(email_address)){
		return true;
	}
	return false;
}

function verifyHuman(formName) {
	document[formName].h_formValidated.value = 'true'
}

function verifyTubesForm() {

	var onErrorAlert		= true;
	var onErrorMessage	= true;
	var errorMessages		= new Array();
	var focused					= false;
	var formObj					= document.TubesForm;

	if (formObj.Name.value == '') {
		errorMessages.push('Please enter your name');
		if(!focused){
			formObj.Name.focus();
			focused = true;
		}
	}

	if (!validateEmail(formObj.Email.value)) {
		errorMessages.push('Please enter a valid email address');
		if(!focused){
			formObj.Email.focus();
			focused = true;
		}
	}
	
	if (formObj.Telephone.value == '') {
		errorMessages.push('Please enter your telephone number');
		if(!focused){
			formObj.Telephone.focus();
			focused = true;
		}
	}

	if (formObj.Enquiry.value == '') {
		errorMessages.push('Please enter your enquiry');
		if(!focused){
			formObj.Enquiry.focus();
			focused = true;
		}
	}

	if (formObj.h_formValidated.value != 'true') {
		errorMessages.push('To prevent automated SPAM, we require you to enter your name manually.');
		if(!focused){
			formObj.Name.focus();
			focused = true;
		}
	}

	if(errorMessages.length != 0){
		if(onErrorAlert){
				alert(errorMessages[0]);
		}
		if(onErrorMessage){
				oErrorDiv = document.getElementById("error_messages");
				errorMsg = "There was a problem with the information you supplied:<br /><ul>";
				for(var i=0; i<errorMessages.length; i++){
					errorMsg += "<li>" + errorMessages[i] + "</li>";
				}
				errorMsg += "</ul>";
				oErrorDiv.innerHTML = errorMsg;
				oErrorDiv.style.display = "block";
		}
		return false;

	} else {

		return true;
	
	}

}


function verifyCallbackForm() {

	var onErrorAlert		= true;
	var onErrorMessage	= false;
	var errorMessages		= new Array();
	var focused					= false;
	var formObj					= document.CallbackForm;

	if (formObj.Name.value == '') {
		errorMessages.push('Please enter your name');
		if(!focused){
			formObj.Name.focus();
			focused = true;
		}
	}

	if (formObj.Telephone.value == '') {
		errorMessages.push('Please enter your Contact Number');
		if(!focused){
			formObj.Telephone.focus();
			focused = true;
		}
	}

	if (!validateEmail(formObj.Email.value)) {
		errorMessages.push('Please enter a valid email address');
		if(!focused){
			formObj.Email.focus();
			focused = true;
		}
	}
	
	if (formObj.h_formValidated.value != 'true') {
		errorMessages.push('To prevent automated SPAM, we require you to enter your name manually.');
		if(!focused){
			formObj.Name.focus();
			focused = true;
		}
	}

	if(errorMessages.length != 0){
		if(onErrorAlert){
				alert(errorMessages[0]);
		}
		if(onErrorMessage){
				oErrorDiv = document.getElementById("CallbackErrors");
				errorMsg = "There was a problem with the information you supplied:<br /><ul>";
				for(var i=0; i<errorMessages.length; i++){
					errorMsg += "<li>" + errorMessages[i] + "</li>";
				}
				errorMsg += "</ul>";
				oErrorDiv.innerHTML = errorMsg;
				oErrorDiv.style.display = "block";
		}
		return false;

	} else {

		return true;
	
	}

}