function Pyr_ToggleVisible(ID) {
    if (document.getElementById(ID).style.display == "none") {
        document.getElementById(ID).style.display = "block";
        document.getElementById(ID).style.visibility = "visible";
    }
    else {
        document.getElementById(ID).style.display = "none";
        document.getElementById(ID).style.visibility = "hidden";
    }
}