greasemonkey - JavaScript error on small script -


i trying write small greasemonkey script change value of few elements when appear on page (through dom modification).

i greasemonkey user, , have no experience in javascript. error: the expression not legal expression. (line: result =...)

i'd know if there more errors need correct.

here script:

// ==userscript== // @name        myscript // @namespace   http://www.google.com // @include     http://mysite/ // @version     1 // @grant       gm_addstyle // ==/userscript==  function waitforkeyelements (selectortxt, actionfunction) {     if (getelementbyxpath(selectortxt) == null) {        var timecontrol = setinterval (function () {                     waitforkeyelements (selectortxt, actionfunction);                 },                 300             );     } else {         clearinterval (timecontrol);         actionfunction();     } }  var getelementbyxpath = function (path) {   result = document.evaluate(path, document, null, xpathresult.first_ordered_node_type, null);   return result.singlenodevalue; };  function myfunc (jnode) {     getelementbyid("foo1").setvalue("foo2"); }  waitforkeyelements ("foo3", myfunc);

it complains value of path not valid xpath selector. can see, you're passing value foo3 means tag <foo3> - not want. try //*[@id='foo3'] instead, see e.g. http://ejohn.org/blog/xpath-css-selectors/ more xpath examples.


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