function hideEmail(user,dom) {
var rec = user + "@" + dom;
var sb_url = "mailto:" + rec;
return rec.link(sb_url)
}

function hide(id) {
getElem(id).style.display = "none";
}

function show(id) {
getElem(id).style.display = "inline";
}

function getElem(elem) {
return document.getElementById(elem);
}