I done this function so far:

2.     $("div.ui-chkbox-box").live("click", function(){
3.         $parent = jQuery( $(this).parents(".ui-selectcheckboxmenu-panel") );
4. 
   
5.         var classes = $(this).attr("class");
6. 
   
7.         if(/ui-state-active/i.test(classes)){
8.             var temp = $parent.attr("id").replace(/\:/g,"\\\\:");
9.             var compId = "#" + temp.replace("_panel", "");
10. 
    
11.             $id = $(compId);
12. 
    
13.             if ($(compId).attr("title") === undefined){
14.                 $id.attr("title", "Test");
15.                 document.getElementById($parent.attr("id")).title = 'Test';
16.             } else {
17.                 var tempTT = $id.attr("title");
18.                 tempTT += " " + "Teste 2";
19.                 $id.attr("title", tempTT);
20.             }
21.         } else {
22. 
    
23.         }
24.     })

Debbuging it, I can see it pass thru my validation, and line 14/15, even so, it is not adding the title to the object. If I copy the snippet that adds the title to the element in the console in chrome, it works perfectly.

That is only an example, i will stick to one way to do so, that one was an attempt with both js and jquery.

Any tips are welcome =)