function checkForm(form)
{
	var reval = true
	var errortxt = ''
			
	if (form.first_name.value.length < 1) {
		errortxt+="Please enter your first name.\n";
		reval = false;
	}
	
	if (form.last_name.value.length < 1) {
		errortxt+="Please enter your last name.\n";
		reval = false;
	}
	
	if (form.company.value.length < 1) {
		errortxt+="Please enter your company.\n";
		reval = false;
	}
			
	if ((form.email.value.length < 5)) {
		errortxt+="Please enter your email address.\n";
		reval = false;
	}
						
	if(!reval){alert(errortxt)}
	return reval;
}