function hide(id) 
{
    var element = document.getElementById(id);
    element.style.display = "none";
}

function show(id) 
{
    var element = document.getElementById(id);
    element.style.display = "block";
}

function toggle(id, category)
{
    var showId = id + "." + category;
    if (category.toLowerCase() == "abstract")
        var hideId = id + ".bibtex"; 
    else 
        var hideId = id + ".abstract";

    var element = document.getElementById(showId);
    if (element.style.display == "block")
        element.style.display = "none";
    else
        element.style.display = "block";
    hide(hideId);
}

function eMailAddress()
{
    var firstnameA = "Al";
    var firstnameB = "ex"
    var dott = ".";
    var surname = "Spen" + "gler"; 
    var att = "@";
    var open = "<";
    var close = ">";
    var space = " ";
    var domain = "lip6.fr";
    return firstnameA + firstnameB + space + surname + space + open + firstnameA.toLowerCase() + firstnameB + dott + surname.toLowerCase() + att + domain + close;
}

function mailTo()
{
    return document.write('<a href="mailTo:' + eMailAddress() + '" class="email"><img src="http://webia.lip6.fr/~spengler/img/lip6-mail.jpg" alt="' + eMailAddress() + '" width="108" height="10" border="0"/></a>');
}