function valid(){
a = document.contact;


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

if(a.telephone.value==""){
alert("Please enter your Telephone");
a.telephone.focus();
a.telephone.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;
}


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


}
return;
}