Oxwall, send link in text chat

I could find function for text chat in Oxwall.
This javascript file have all function (ow_plugins/mailbox/static/js/contactmanager.js).

I could find the function for receive key from text chat, When i press enter, This function all text to server.

If i could send key enter (this means i can call this function with enter key parameter) i could send my link after i fill text chat box.

this.textareaControl.keypress(function (ev) {

        if (!self.model.isSelected) {
            self.model.setIsSelected(true);
        }

        if (ev.which === 13 && !ev.shiftKey) {
            alert("jiq oooo dasto hora!!!22222 :D");
            ev.preventDefault();

            var body = $(this).val();
            alert(body);
            if ($.trim(body) == '')
                return;

            self.sendMessage(body);

            if (self.dialogWindowHeight > 0) {
                self.messageListWrapper.height(self.dialogWindowHeight);
            }

            $(this).attr('rows', 1);
            $(this).css('height', self.textareaHeight);

            self.scrollDialog();

            self.model.setIsComposing(false);
        }
        else if (ev.which === 13 && ev.shiftKey) {
            self.adjustTextarea($(this));
        }
        else {
            self.adjustTextarea($(this));
        }
}

I read this function and i could edit this function for better call:

function ehsan11() {

    var ev = window.event;
    alert(ev.which);
    if (!self.model.isSelected) {
        self.model.setIsSelected(true);
    }

    if (ev.which === 13 && !ev.shiftKey) {
        alert("jiq oooo dasto hora!!!22222 :D");
        ev.preventDefault();

        var body = $(this).val();
        alert(body);
        if ($.trim(body) == '')
            return;

        self.sendMessage(body);

        if (self.dialogWindowHeight > 0) {
            self.messageListWrapper.height(self.dialogWindowHeight);
        }

        $(this).attr('rows', 1);
        $(this).css('height', self.textareaHeight);

        self.scrollDialog();

        self.model.setIsComposing(false);
    }
    else if (ev.which === 13 && ev.shiftKey) {
        self.adjustTextarea($(this));
    }
    else {
        self.adjustTextarea($(this));
    }
}

this.textareaControl.keypress(ehsan11);

But i still can not call ehsan11 function from outer, Because this function wrote in this unit:

OWMailbox.Dialog.Controller = function(model){
...
    function ehsan11() {
           ...
    }
    this.textareaControl.keypress(ehsan11);
...
}

Can any one help me.
Thanks a lot.