rem: rv = { value: initial }; 
add: var rv = { value: initial }; 
context: function prompt(msg, initial, parent, title){    var PROMPT_CTRID = "@mozilla.org/embedcomp/prompt-service;1";    var nsIPromptService = Components.interfaces.nsIPromptService;    var ps = Components.classes[PROMPT_CTRID].getService(nsIPromptService);    if (!parent)        parent = window;    if (!title)        title = MSG_PROMPT;    rv = { value: initial };    if (!ps.prompt (parent, title, msg, rv, null, {value: null}))        return null;    return rv.value}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/2523375b31df44417a1250e8b2fb60f807fa31f9/venkman-utils.js/buggy/extensions/venkman/resources/content/venkman-utils.js