How can i use jquery code in ExtendedRenderKitService?

Question

i'm try to using jquery like this way,but cause js error.
so,can i use jqeury code in ExtendedRenderKitService? how?
private String jsFunction() {
StringBuilder sb = new StringBuilder();
sb.append("$(document).ready(function(){");
sb.append("var spans = $('span');");
sb.append("alert(spans.length);");
sb.append(" });");
return sb.toString();
public void searchTree(ActionEvent actionEvent) {
favoriteTreeManager.searchTree(searchCriterium);
FacesContext context = FacesContext.getCurrentInstance();
ExtendedRenderKitService extRenderKitSrvc =
Service.getRenderKitService(context, ExtendedRenderKitService.class);
extRenderKitSrvc.addScript(context,
jsFunction());
}

Answer 1

Hi,
$('span') is invoked when the page renders if I remember correctly. Since using JavaScript from a managed bean invokes a function, the use of JQuery does not work. You can run a little test. If you get JQuery working from a URL browser typing javascript:... command ... then the same probably works from a managed bean
Frank