OOP in Javascript

function TaskList(title, wsurl, appType) {

var TaskList = this;
this.Title = title;
this.WSUrl = wsurl;
this.AppType = appType;

}

TaskList.prototype.GetTasks = function() {

alert("Get Tasks!");

}


$(document).ready(function() {

var t = new TaskList("HR Leave System", "http://test.asmx", "Custom Application");
t.GetTasks();

};