function addEvent( obj, eType, fn )
{
   
   if (obj.addEventListener) {
      obj.addEventListener( eType, fn, false );
   } else if (obj.attachEvent) {
      obj["e"+eType+fn] = fn;
      obj[eType+fn] = function() { obj["e"+eType+fn]( window.event ); }
      obj.attachEvent( "on"+eType, obj[eType+fn] );
   }
 
}

function removeEvent( obj, type, fn )
{
 
   if (obj.removeEventListener) {
      obj.removeEventListener( type, fn, false );
   } else if (obj.detachEvent) {
      obj.detachEvent( "on"+type, obj[type+fn] );
      obj[type+fn] = null;
      obj["e"+type+fn] = null;
   }
 
}

function stopProp(e) {
    if (e && e.stopPropogation) e.stopPropogation();
    else if (window.event && window.event.cancelBubble)
    window.event.cancelBubble = true;
}
function stopDef(e) {
    if (e &&e.preventDefault) e.preventDefault();
    else if (window.event && window.event.returnValue)
    window.eventReturnValue = false;
}