function validateForm(form) {
var valid = true ;
if (form.firstname.value == "" | form.firstname.value == "Please enter your first name" ) {
valid = false ;
form.firstname.value = "Please enter your first name" ;
}
if (form.emailaddress.value == "" | form.emailaddress.value == "Please enter your email address") {
valid = false ;
form.emailaddress.value = "Please enter your email address" ;
}
if (form.enquiry.value == "" | form.enquiry.value == "Please enter your enquiry") {
valid = false ;
form.enquiry.value = "Please enter your enquiry" ;
}
return valid ;
}