When I try to call an Ajax function from a Javascript-generated pop up, it won't work..

# Perl CGI script:
use myPackage;
### CGI Object ###
my $cgi = new CGI;
### Ajax Object ###
my $pjx = new CGI::Ajax( 
    'exported_func1'     => \&exported_func1_code,
    'exported_func2'     => \&exported_func2_code,
);
print $pjx->build_html($cgi, \&Show_HTML);
sub exported_func1_code{
    my $commentsobj = new myPackage();
    ## some code that works.. (not package problem)
    ## this returns the data to "showContextMenu"
    ## and I can actually see the pop up..
    $someHTML = "
    <!-- some HTML -->
        <input type=\"BUTTON\" id=\"SubmitId\" name=\"SubmitId\" VALUE
+=\"Submit\" onClick=\"exported_func2(['CommentValue'],['dummyName']);
+\"><center>
    <!-- some HTML -->
    ";
    return $someHTML;
}
sub exported_func2_code{
    ## this one is called from inside the popupMenu
    ## but seems it cant be called from there..any suggestion?
    my ($p1,$p2,$p3,$p4) = split("\_",shift);
    my $commentsobj = new myPackage();
    my $result = $commentsobj->myFunction($p1,$p2,$p3,$p4);
    return 1;
}
sub Show_HTML{
    my $html_all = "
    <!-- headers.. -->
    <script type=\"text/javascript\">
    function showContextMenu(input) {
        var menuContent = '';
        menuContent = '<table width=100\%><tr><td>'+ input +'</td></tr
+></table>';

        var menuWidth = 400;
        var menuHeight = 400;
        var menuLeft = 200;
        var menuTop = 200;
        
        var popupMenu = parent.window.createPopup();
        var popupMenuBody = popupMenu.document.body;

        popupMenuBody.style.border = 'solid black 1px';
        popupMenuBody.style.fontSize = '2pt';
        popupMenuBody.style.fontFamily = 'Arial';

        popupMenuBody.innerHTML = menuContent;
        for (var i = 0; i < popupMenuBody.all.length; i++) {
            if(popupMenuBody.all[i].id == \"TextAreaId\"){
                popupMenuBody.all[i].onkeypress = updateText;
            }
        }
        popupMenu.show(menuLeft, menuTop, menuWidth, menuHeight, docum
+ent.body);
    return false;
    }
    function updateText(){
        //var keypressedCode = e.keyCode || 1; //this does not work !
        //var inputtext = String.fromCharCode(keypressedCode); //neith
+er does this work !
        
        this.value += 'HI';
    }
    </scrip>
    <!-- more html.. -->
            <td onmouseover=\"exported_func1(['mySourceDivID'],[showCo
+ntextMenu]);\">SomeText</td>
    <!-- more html.. -->
    ";
    return $html_all;
}
[download]

The problem is that the code is able to call the "exported_func1_code" from the main page, but I'm not able to call the "exported_func2_code" from inside the pop up, any ideas? (it just tells me the script stopped running) Thanks ! EDIT: fixed code for exported_func2_code, sorry for the typo