/**
 *
 *
 *
 *
 */
function display_toggle(id)
{
    var obj = document.getElementById(id);
    if ( obj ) {
        if ( obj.style.display == "none" || obj.style.display == "" ) {
            obj.style.display = "block";
        }
            else {
                obj.style.display = "";
            }
    }
}