function validate_enquiry(){

	var error = '';
	var emailregex			= /^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;
	var user_email		 = document.enquiry_form.email.value;
	var user_email_check = document.enquiry_form.email_repeat.value;

	if(user_email == ''){					error = error + "You must enter an email address\n";}
	else if(!user_email.match(emailregex)){	error = error + "You must enter a valid email address\n";}

	if(user_email != user_email_check){		error = error + "Your emails do not match\n";}

	if(error != ''){
		alert(error);
		return false;
	}else{
		return true;
	}
}