Thanks arash for replies
The header of my xhtml page is like this:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:c="http://java.sun.com/jstl/core"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:v="http://corejsf.com/validator">
when I user view source option of my browser then the ascii bytecode
of message viewable
//<![CDATA[
function confirmDelAction(){
return confirmDelete('آیا شما
از حذف
فعالیت null
مطمئن
هستید') ;
}
//
//]]>