function validateEnquiryForm(f){

	if(f.firstname.value==""){
		alert("Please complete the First Name field.  Fields marked with an asterisk are mandatory.")
		f.firstname.focus();
		return false;
	}
	if(f.surname.value==""){
		alert("Please complete the Surname field.  Fields marked with an asterisk are mandatory.")
		f.surname.focus();
		return false;
	}
	if(f.company.value==""){
		alert("Please complete the Company Name field.  Fields marked with an asterisk are mandatory.")
		f.company.focus();
		return false;
	}
	if(f.telephone.value==""){
		alert("Please complete the Phone Number field.  Fields marked with an asterisk are mandatory.")
		f.telephone.focus();
		return false;
	}
	if(f.email.value==""){
		alert("Please complete the Email field.  Fields marked with an asterisk are mandatory.")
		f.email.focus();
		return false;
	}
	if(f.enquiry.value==""){
		alert("Please complete the Enquiry field.  Fields marked with an asterisk are mandatory.")
		f.enquiry.focus();
		return false;
	}

	return true;
}