function swapDirBox() {
	var frombox = document.getElementById('frombox');
	var currstyle = frombox.style.display;
	
	if (currstyle == 'none' || currstyle == '') {
		frombox.style.display = 'block';
	} else {
		frombox.style.display = 'none';
	}
}

function addMailList() {
	var embox = document.getElementById('email');
	var email = embox.value;
	
	if (check_email(email)) {
	
		$.post("addmail.php", { email: email });
		embox.value = "Thanks!";
		embox.disabled = true;
	} else {
		alert ("Please enter a valid email address.");
	}
}

function check_email(e) {
ok = "1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";

for(i=0; i < e.length ;i++){
if(ok.indexOf(e.charAt(i))<0){ 
return (false);
}	
} 

if (document.images) {
re = /(@.*@)|(\.\.)|(^\.)|(^@)|(@$)|(\.$)|(@\.)/;
re_two = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
if (!e.match(re) && e.match(re_two)) {
return (-1);		
} 

}

}