Get current list name of new-edit form using javascript

Problem Description:

While playing with JavaScript, today I require List name of current form (new, edit).

After little bit googlling i am getting some scripts but there are some bugs.

after working with that all scripts, final scripts is ready to use, as below....

var clientContext = SP.ClientContext.get_current();

oWeb = clientContext.get_web();

oListColl = oWeb.get_lists();

var currentListGUID = SP.ListOperation.Selection.getSelectedList();

var ListName="";

if (currentListGUID === null)

{

        ListName = $(".s4-titletext h2 a:first").html(); //requires JQuery to get list name from ribbon

}

else

{               

        ListName=currentListGUID;

}

That's all...!!!