function toggleDisplayStatus() {
    var state = document.getElementById('canvas').style.display;
    if (state == 'block') {
        document.getElementById('canvas').style.display = 'none';
    } else {
        document.getElementById('canvas').style.display = 'block';
    }
}

/* Routebeschrijvnig DIV's */
var divEl = '';

function OpenDiv(el) {
    CloseDiv();
    if (divEl != el) {
        var obj = document.getElementById(el);
        if (obj) {
            obj.style.display = '';
//            obj.scrollIntoView();
        }
        divEl = el;
    }
    else {
        divEl = '';
    }
    return false;
}

function CloseDiv() {
    if (divEl != '') {
        var obj = document.getElementById(divEl);
        if (obj)
            obj.style.display = 'none';
    }
}