function choose_sidebar() {
	// choose 1 of 3 sidebar logos
	var sidebar = document.getElementById("sidebar");
	var r = Math.floor(Math.random()*3) + 1;
	var img = "<img src=\"/img/kidid_web" + r + ".jpg\"/>";
	sidebar.innerHTML = img;
}

function nav_mouseover(nav_id) {	
	document.getElementById(nav_id).style.backgroundColor = "#4eb748";	
}
function nav_mouseout(nav_id) {
	document.getElementById(nav_id).style.backgroundColor = "#000000";
}

function updateContactPage() {
	if(request.readyState == 4) {
		var stat = document.getElementById("email_status");
		stat.style.Color = "#00ff00";
		stat.innerHTML = "OK!";
	}
}

function add_email() {
	var email = document.getElementById("addr").value;
	if(email == "" || email.indexOf("@") == -1)
		alert("DON'T MESS WITH ME.  THAT'S NOT A REAL E-MAIL ADDRESS");
	else {
		var url = "add_email.php?email=" + email;
		request.open("GET", url, true);
		request.onreadystatechange = updateContactPage;
		request.send(null);		
	}
}