rem: var targetElement = document.getElementById(targetId); var observer = document.getElementById(observerId); 
add: var targetElement = ORBEON.util.Dom.getElementById(targetId); var observer = ORBEON.util.Dom.getElementById(observerId); 
context:     callUserScript: function(functionName, targetId, observerId) {        var targetElement = document.getElementById(targetId);        var observer = document.getElementById(observerId);        var event = { "target" : targetElement };        var theFunction = eval(functionName);        theFunction.call(observer, event);    }
meta: 9823	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9823/58f774b831fe409c94e9200f2ac06c01bdc56f81/xforms.js/clean/src/resources-packaged/ops/javascript/xforms.js