function checkmailing(which) {
	if(document.form.name.value == "") {
		alert('Please enter your name. Thank you.');
		document.form.name.focus();
		return false;
	}
	if((document.form.email.value == "")&&(document.form.telephone.value == "")) {
		alert('Please tell us how to contact you. Thank you.');
		document.form.email.focus();
		return false;
	}
	if(document.form.email.value != ""){
	inemail = document.form.email.value;
        split1 = inemail.split("@");
	split2 = inemail.split(".");
        if (split1.length < 2) {
            	alert('There seems to be a mistake with the format of your email. Please check carefully.');
	             document.form.email.focus();
		return false;
        }
        if (split2.length < 2) {
            	alert('There seems to be a mistake with the format of your email. Please check carefully.');
	             document.form.email.focus();
	return false;
	}
	}
return true;
}