function contact(f)
{
	errors="";
	if (f.name.value=="")
		errors+="*Please insert your name!\n";
	if (f.email.value=="")
		errors+="*Please insert your e-mail address!\n";
	if (f.company.value=="")
		errors+="*Please insert your company name!\n";
	if (f.message.value=="")
		errors+="*Please insert your message!\n";

	if (errors!="")
	{
		alert(errors);
		return false;
	}
	
	return true;
}