add: document.forms[0].dom3lsFeatures.disabled = !(implName == "dom3ls"); 
context: function onImplementationChange() {    var implOptions = document.forms[0].implementation;    for(var i = 0; i < implOptions.length; i++) {        if (implOptions[i].checked) {            builder = createBuilder(implOptions[i].value);            break;        }    }    update();}
meta: 7959	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/7959/056596486fb2832f049429354b7c4c4095f47b9a/DOMTestSuite.js/buggy/ecmascript/DOMTestSuite.js