function emptyField(field) {
    field.value = "";
  }

  function fieldEmpty( foo ) {
    for (var i = 0; i < foo.length; i++) {
      var c = foo.charAt( i );
      if (( c != ' ') && (c != '/n') && (c != '/t'))
        return false;
    }
    return true;
  }

  function addEvent(obj, evType, fn, useCapture){
    if (obj.addEventListener){
      obj.addEventListener(evType, fn, useCapture);
      return true;
    } else if (obj.attachEvent){
      var r = obj.attachEvent("on"+evType, fn);
      return r;
    }
    return false;
  }

  function AssignMenuEvents(pObject) {
    var node ;
    var vPreviousIndex ;
    for (i=0; i < pObject.childNodes.length; i++) {
      node = pObject.childNodes[i];
      if (node.tagName == "LI") {
        if (document.all && document.getElementById) {
          node.onmouseover=function() { this.className+=" over"; }
          node.onmouseout=function() { this.className=this.className.replace(" over", ""); }
        }
      }
      if (node.childNodes.length > 0) {
        vPreviousIndex = i ;
        AssignMenuEvents(node);
        i = vPreviousIndex ;
      }
    }
  }

  function AssignMenuEventsStart() {
    if (document.all && document.getElementById) {
      // Skip Mozilla. DO IE
      var node = document.getElementById("flag-top");
      if (node) {
        AssignMenuEvents(node);
      }
    }
  }

  addEvent(window,'load',AssignMenuEventsStart);