// adapted from http://www.willmaster.com/blog/css/show-hide-div-layer.php

function ShutIt(d) {
document.getElementById(d).style.display = "none";
}
function OpenIt(d) {
document.getElementById(d).style.display = "block";
}
function Toggle(d) {
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}