function Validate() {
var f = document.frmEnquiry;

if (f.firstName.value==""){
alert("Please enter your first name");
f.firstName.focus();
return false;
}
if (f.lastName.value==""){
alert("Please enter your last name");
f.lastName.focus();
return false;
}
if (f.email.value==""){
alert("Please enter your email");
f.email.focus();
return false;
}

}