function HideContent() {
// hide them all
document.getElementById("twitter").style.display = "none";
document.getElementById("facebook").style.display = "none";
document.getElementById("flickr").style.display = "none";
document.getElementById("ffeed").style.display = "none";
document.getElementById("delic").style.display = "none";
document.getElementById("lastfm").style.display = "none";
document.getElementById("blog").style.display = "none";
document.getElementById("rss").style.display = "none";
document.getElementById("email").style.display = "none";

}
function ShowContent(d) {
// Hide them
HideContent();
// and show the one we want
document.getElementById(d).style.display = "block";
}
function ReverseContentDisplay(d) {
if(d.length < 1) { return; }
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}