function onTourOver(i) {
    var t1a = document.getElementById("t1a");
    var t1b = document.getElementById("t1b");
    var t2a = document.getElementById("t2a");
    var t2b = document.getElementById("t2b");
    var t3a = document.getElementById("t3a");
    var t3b = document.getElementById("t3b");
    if (i == 1) {
        if(t1a != null)
            t1a.className = "tourt1on";
        if (t1b != null)
        t1b.className = "tourtbon";
} else {
        if (t1a != null)
            t1a.className = "tourt1off";
        if (t1b != null)
            t1b.className = "tourtboff";
    }
    if (i == 2) {
        if (t2a != null)
            t2a.className = "tourt2on";
        if (t2b != null)
            t2b.className = "tourtbon";
    } else {
        if (t2a != null)
            t2a.className = "tourt2off";
        if (t2b != null)
            t2b.className = "tourtboff";
    }
    if (i == 3) {
        if (t3a != null)
            t3a.className = "tourt3on";
        if (t3b != null)
            t3b.className = "tourtbon";
    } else {
        if (t3a != null)
            t3a.className = "tourt3off";
        if (t3b != null)
            t3b.className = "tourtboff";
    }
}

function onTourOut(i) {
    resetAll()
}

function resetAll() {
    var t1a = document.getElementById("t1a");
    var t1b = document.getElementById("t1b");
    var t2a = document.getElementById("t2a");
    var t2b = document.getElementById("t2b");
    var t3a = document.getElementById("t3a");
    var t3b = document.getElementById("t3b");
    if (t1a != null)
        t1a.className = "tourt1off";
    if (t2a != null)
        t2a.className = "tourt2off";
    if (t3a != null)
        t3a.className = "tourt3off";
    if (t1b != null)
        t1b.className = "tourtboff";
    if (t2b != null)
        t2b.className = "tourtboff";
    if (t3b != null)
        t3b.className = "tourtboff";
}