function valid(){
	
a = document.enquiry;


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

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

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

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

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

if(a.email.value==""){
alert("Please enter your Email Address");
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.enquiry.email.value)
	if (returnval==false){
		alert("Please enter a valid email address.")
		document.enquiry.email.select()
		return false;
	}


}


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

return true;
}