// Check contact form for required fields
function checkForm(){
	if (document.reab_form.name.value == "") {
		alert("please enter your name."); 
		document.reab_form.name.focus();
	} else if (document.reab_form.email.value == "") {
		alert("please enter your email address."); 
		document.reab_form.email.focus();
	} else if(null == document.reab_form.email.value.match(/[a-zA-Z0-9._]+@[a-zA-Z0-9.-_]+/)) {
		alert("please enter a valid email address."); 
		document.reab_form.email.focus();
	} else if (document.reab_form.comments.value == "") {
		alert("please enter your comments.");
		document.reab_form.comments.focus();
	} else {
	document.reab_form.action="mail.php";
	document.reab_form.submit();
	}
}