function ShowHiddenFilterOptions(aa) {
    var i;
    i = document.getElementById(aa);
    if (!i.hasChildNodes()) return false;
    var children = i.childNodes;
     // Loop through the children
    try {
        for(var c=0; c < children.length; c++) {
          if (children[c].nodeName == "UL") {
            var el = children[c].getElementsByTagName("li");
            for (var x=0; x < el.length-1; x++) {
                if (el.item(x).attributes.getNamedItem("class")==null) {} else {
                    el.item(x).attributes.getNamedItem("class").nodeValue = "";
                }
            }
          }
          if (children[c].nodeName == "A") {
            children[c].style.display = "none";
          }

        }
    } catch (Err) {
       var table_body = document.createElement("DIV");
       table_body.innerHTML=Err;
    document.body.appendChild(table_body );
    }
 return false;
}