function toggleMenu(objID) {
 // alert("in toggleMenu" + document.getElementById);
 // alert("in toggleMenu. style is:" + document.getElementById(objID).style);
  
 if (!document.getElementById) return;
 
 var ob = document.getElementById(objID).style;
 
 // alert("ob.display 1 is: " + ob.display);
 
 ob.display = (ob.display == 'block')?'none': 'block';
 
 // alert("ob.display 2 is: " + ob.display);
}