rem: OnChange : function(src,prop,old_target,new_target) {}, 
add: OnChange : function(src,prop,old_target,new_target) { debug ("*** sidebar observer: change"); }, 
context:   OnChange : function(src,prop,old_target,new_target) {},
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/fd71ff470d3424a16226fdcd4eeb20a60dea20ce/sidebarOverlay.js/clean/xpfe/components/sidebar/resources/sidebarOverlay.js