how to prevent submit on onclicktopics

Question

I have the following codes, saveBt, should not submit when user selects cancel on confirm however it seems it still submits cause I have onClickTopics, I need this onclicktopics to reload a struts jquery grid. Any workarounds?

$("#saveBt").click(function(event){
                event.preventDefault();
                if($('#Form').valid()){
                    if (confirm("Are you sure ?")) {
                        return true;
                    } else {
                        return false;
                    }
                }
            });

<sj:a id="saveBt" onClickTopics="reloadGrid" name="saveChannel" value="saveChannel">Save</sj:a>

UPDATE: Need onClicks to reload grid via :

<sj:a id="saveBt" onClickTopics="reloadGrid" name="save" value="save">Save</sj:a>
<sjg:grid id="gridTable"  reloadTopics="reloadGrid" resizable="true"
                     autowidth="true">

Answer 1

Ended up with:

    function validator() {
        if (confirm("Are you sure you want to save?")) {
            $("#Form").submit();
            $("#refresh_gridTable").click();
        }
    }

<sj:a id="saveBt" onclick="return validator();">Save</sj:a>

Struts jquery Grid creates a refresh button via setting : navigatorRefresh="true" just had to click it after submit.