rem: return drop._containers.detect(function(c) { return parentNode == c }); 
add: return drop._containers.detect(function(c) { return containmentNode == c }); 
context:     return drop._containers.detect(function(c) { return parentNode == c });
meta: 1782	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1782/a458ebb30ee90b66048c7fd858f5f39957a9be68/dragdrop.js/clean/webapp/sandbox/scripts/dragdrop.js