rem: function lbox_enum (callback) 
add: function lbox_enum (callback, data) 
context: function lbox_enum (callback){    var i = 0;    var current = this.listContainer.firstChild;        while (current)    {        callback (current, i++);        current = current.nextSibling;    }    }
meta: 1567	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1567/6e101bce1928d1d64e107552578522c465248a2a/listbox.js/buggy/xul/lib/listbox.js