rem: return ioService.newURI(baseURI.resolve(url), null); 
add: return ioService.newURI(baseURI.resolve(url), null).href; 
context:     makeURLAbsolute : function ( base, url ) {        // Construct nsIURL.        var ioService = Components.classes["@mozilla.org/network/io-service;1"]                      .getService(Components.interfaces.nsIIOService);        var baseURI  = ioService.newURI(base, null);                return ioService.newURI(baseURI.resolve(url), null);    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/68fd2386b90c2825793f33cdc4c7d809bc483493/nsContextMenu.js/buggy/suite/common/nsContextMenu.js