rem: function mng_delrule (name) 
add: function mng_delrule(name) 
context: function mng_delrule (name){    delete this.entries[name];}
meta: 1622	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1622/66faa15770eb603baa8430719708167c7eb6b54c/munger.js/buggy/xul/lib/munger.js