var d, d1;
function l1(le) {
                this.obj = le;
                this.init();
            }
l1.prototype = {
                init: function () {
                    var ob = $(this.obj);
                          ob.on('click', function (event) {
...........................
                    });
                },

                getXX:function(f){
                    var s;
                    console.warn(this === d ? "called from d" : "called from d1");
                }
            };


d = new l1($('#uu'));
d1 = new l1($('#gg'));