// JavaScript Document

function validateFlightbooking() {
  with  (window.document.frmBookFlight){
	  if (isEmpty(txtName, 'Please Input your name')) {
		    return;
	  }	else if (isEmpty(txtEmail, 'Please Input your email address')) {
		    return;
	  }	else if (isEmpty(txtdepDate, 'You must enter a departure date')) {
		    return;
	  }	else if (echeck(txtEmail.value)==false) {
		    alert ("Please ensure you have input a valid email address");
		    return;
	  } else  {  
        submit();
	  }
  }
}

function validateHotelbooking() {
  with  (window.document.frmBookHotel){
	  if (isEmpty(txtName, 'Please Input your name')) {
		    return;
	  }	else if (isEmpty(txtEmail, 'Please Input your email address')) {
		    return;
	  }	else if (isEmpty(txtdepDate, 'You must specify a check in date')) {
		    return;
	  }	else if (isEmpty(txtretDate, 'You must specify a check out date')) {
		    return;
	  }	else if (echeck(txtEmail.value)==false) {
		    alert ("Please ensure you have input a valid email address");
		    return;
	  } else  {  
        submit();
	  }
  }
}

function validateRentalCarbooking() {
  with  (window.document.frmBookRentalCar){
	  if (isEmpty(txtName, 'Please Input your name')) {
		    return;
	  }	else if (isEmpty(txtEmail, 'Please Input your email address')) {
		    return;
	  }	else if (isEmpty(txtdepDate, 'You must specify a check in date')) {
		    return;
	  }	else if (isEmpty(txtretDate, 'You must specify a check out date')) {
		    return;
	  }	else if (echeck(txtEmail.value)==false) {
		    alert ("Please ensure you have input a valid email address");
		    return;
	  } else  {  
        submit();
	  }
  }
}


function validateTourbooking() {
  with  (window.document.frmBookTour){
	  if (isEmpty(txtName, 'Please Input your name')) {
		    return;
	  }	else if (isEmpty(txtEmail, 'Please Input your email address')) {
		    return;
	  }	else if (isEmpty(txtdepDate, 'You must enter a tour start date')) {
		    return;
	  }	else if (echeck(txtEmail.value)==false) {
		    alert ("Please ensure you have input a valid email address");
		    return;
	  } else  {  
        submit();
	  }
  }
}