rem: onDragOver: function () 
add: onDragOver: function(aEvent, aFlavour, aDragSession) 
context:   onDragOver: function ()    {      return true;    },
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/4747a3a87a47f7500fbd796043a31e0b529b9e7a/browser.js/clean/browser/base/content/browser.js