// JavaScript Document
function ToggleDisplay(id) { 

    var e = document.getElementById(id);
    var currentState = e.style.display;

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

    return false;
}