function valid(){
	
a = document.contact;


if(a.name.value==""){
alert("Please enter your First Name");
a.name.focus();
a.name.select();
return false;
}

if(a.add1.value==""){
alert("Please enter your Address Line 1");
a.add1.focus();
a.add1.select();
return false;
}

if(a.add2.value==""){
alert("Please enter your Address Line 2");
a.add2.focus();
a.add2.select();
return false;
}

if(a.city.value==""){
alert("Please enter your Town/City");
a.city.focus();
a.city.select();
return false;
}

if(a.country.value==""){
alert("Please enter your Country");
a.country.focus();
a.country.select();
return false;
}

if(a.postcode.value==""){
alert("Please enter your Post Code");
a.postcode.focus();
a.postcode.select();
return false;
}

if(isNaN(a.tnumber.value) || a.tnumber.value==""){
alert("Please enter your Telephone Number");
a.tnumber.focus();
a.tnumber.select();
return false;
}

if(isNaN(a.faxnumber.value) || a.faxnumber.value==""){
alert("Please enter your Fax Number");
a.faxnumber.focus();
a.faxnumber.select();
return false;
}

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

$('.chked').removeClass('chked');
$('.enquiry-wrap').removeClass('highlight');

$('.enquiry:checked').each(function(){
	$(this).addClass('chked');
});

if( ! $('.chked').attr('name') ){
	alert("Please select atleast one Enquiry Topic.");
	$('.enquiry-wrap').addClass('highlight');
	return false;
}


if(a.comments.value==""){
alert("Please enter your Comments");
a.comments.focus();
a.comments.select();
return false;
}
	
	
}
return true;
}