rem: onDragOver: function () 
add: onDragOver: function(aEvent, aFlavour, aDragSession) 
context:   onDragOver: function ()    {      return true;    },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8395/49e767d479d3bdbe5ba647fe113bafbdae087bae/browser.js/buggy/browser/base/content/browser.js