// JavaScript Document
function toggleDiv(id){

    var box = new Array("boxA", "boxB", "boxC");

    for (i in box) {    
        var e = document.getElementById(box[i]);
        e.style.display = "none";
    }
    
    var e = document.getElementById(id);
    e.style.display = "block";

}

function flipNav(naam) {
    var e = document.getElementById(naam);

    if (e.style.display == "block") {
        e.style.display = "none";
    }
    else {
        e.style.display = "block";
    }
}