function checkRadio (frmName, rbGroupName) {
 var radios = document[frmName].elements[rbGroupName];
 for (var i=0; i <radios.length; i++) {
  if (radios[i].checked) {
   return true;
  }
 }
 return false;
}

function Form_Validation(myForm)
{
	if (document.myForm.txtname.value == '')
	{
		alert("Please enter your name.");
		document.myForm.txtname.focus();
		return false;
	}
	else if (document.myForm.homeaddress.value == '')
	{
		alert("Please enter Home Address.");
		document.myForm.homeaddress.focus();
		return false;
	}
	else if (document.myForm.phone.value == '')
	{
		alert("Please enter Phone Number.");
		document.myForm.phone.focus();
		return false;
	}	
	
	
	else if (document.myForm.txtemail.value == '')
	{
		alert("Please enter Email Address.");
		document.myForm.txtemail.focus();
		return false;
	}
	else if (document.myForm.message.value == '')
	{
		alert("Please enter your Message.");
		document.myForm.message.focus();
		return false;
	}	
	else if (document.myForm.security_code.value == '')
	{
		alert("Please enter Security Code.");
		document.myForm.security_code.focus();
		return false;
	}
	else if (document.myForm.txtemail.value !== '')
	{
		return checkmail(myForm.txtemail);
	}
	else
	{
	 return true
	}
}


function Form_Validation(myForm)
{
	if (document.myForm.txtname.value == '')
	{
		alert("Please enter your name.");
		document.myForm.txtname.focus();
		return false;
	}
	else if (document.myForm.homeaddress.value == '')
	{
		alert("Please enter Home Address.");
		document.myForm.homeaddress.focus();
		return false;
	}
	else if (document.myForm.phone.value == '')
	{
		alert("Please enter Phone Number.");
		document.myForm.phone.focus();
		return false;
	}	
	
	
	else if (document.myForm.txtemail.value == '')
	{
		alert("Please enter Email Address.");
		document.myForm.txtemail.focus();
		return false;
	}
	else if (document.myForm.message.value == '')
	{
		alert("Please enter your Message.");
		document.myForm.message.focus();
		return false;
	}	
	else if (document.myForm.security_code.value == '')
	{
		alert("Please enter Security Code.");
		document.myForm.security_code.focus();
		return false;
	}
	else if (document.myForm.txtemail.value !== '')
	{
		return checkmail(myForm.txtemail);
	}
	else
	{
	 return true
	}
}



function Form_ValidationBarge(myForm)
{
	if (document.myForm.txtname.value == '')
	{
		alert("Please enter your name.");
		document.myForm.txtname.focus();
		return false;
	}
	else if (document.myForm.txtemail.value == '')
	{
		alert("Please enter Email Address.");
		document.myForm.txtemail.focus();
		return false;
	}
	else if (document.myForm.contInfo.value == '')
	{
		alert("Please enter your Contact Information.");
		document.myForm.contInfo.focus();
		return false;
	}

	else if (document.myForm.passenger.value == '')
	{
		alert("Please enter number of Passengers.");
		document.myForm.passenger.focus();
		return false;
	}
	else if (document.myForm.datefrom.value == '')
	{
		alert("Please Enter 'Origin' from.");
		document.myForm.datefrom.focus();
		return false;
	}
	else if (document.myForm.dateDept.value == '')
	{
		alert("Please enter Date Departure.");
		document.myForm.dateDept.focus();
		return false;
	}	
	else if (document.myForm.dateto.value == '')
	{
		alert("Please Enter 'Destination'.");
		document.myForm.dateto.focus();
		return false;
	}
	else if (document.myForm.security_code.value == '')
	{
		alert("Please enter Security Code.");
		document.myForm.security_code.focus();
		return false;
	}
	else if (document.myForm.txtemail.value !== '')
	{
		return checkmail(myForm.txtemail);
	}
	else
	{
	 return true
	}
}

function checkmail(e){
var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
var returnval=emailfilter.test(e.value)
	if (returnval==false){
		alert("Please enter a valid email address.")
		e.select()
	}
return returnval
}



function Form_Validation_book(myForm)
{
	if (document.myForm.full_name.value == '')
	{
		alert("Please enter your full name.");
		document.myForm.full_name.focus();
		return false;
	}
	else if (document.myForm.Month.value == 'Month')
	{
		alert("Please enter Month.");
		document.myForm.Month.focus();
		return false;
	}
	else if (document.myForm.day.value == 'Day')
	{
		alert("Please enter correct date.");
		document.myForm.day.focus();
		return false;
	}
	else if (document.myForm.year.value == 'Year')
	{
		alert("Please enter Year.");
		document.myForm.year.focus();
		return false;
	}
	else if (document.myForm.time_1.value == '')
	{
		alert("Please enter correct time.");
		document.myForm.time_1.focus();
		return false;
	}
	else if (document.myForm.am_pm_1.value == '')
	{
		alert("Please select AM or PM.");
		document.myForm.am_pm_1.focus();
		return false;
	}
	else if (document.myForm.time_2.value == '')
	{
		alert("Please enter correct time.");
		document.myForm.time_2.focus();
		return false;
	}
	else if (document.myForm.am_pm_2.value == '')
	{
		alert("Please select AM or PM.");
		document.myForm.am_pm_2.focus();
		return false;
	}
	else if (document.myForm.r_Package.value == '')
	{
		alert("Please select Packages.");
		document.myForm.r_Package.focus();
		return false;
	}
	else if (document.myForm.name.value == '')
	{
		alert("Please select name.");
		document.myForm.name.focus();
		return false;
	}
	else if (document.myForm.n_riders.value == '')
	{
		alert("Please insert number of riders.");
		document.myForm.n_riders.focus();
		return false;
	}
	else if (document.myForm.Phone.value == '')
	{
		alert("Please insert Phone.");
		document.myForm.Phone.focus();
		return false;
	}
	else if (document.myForm.email.value == '')
	{
		alert("Please insert email.");
		document.myForm.email.focus();
		return false;
	}
	else if (document.myForm.email.value !== '')
	{
		return checkmail(myForm.email);
	}	
	
	
}





function checkmail(e){
var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
var returnval=emailfilter.test(e.value)
	if (returnval==false){
		alert("Please enter a valid email address.")
		e.select()
	}
return returnval
}