Create UI Component in HTML, CSS, and JS like it is in Adobe Flex & ActionScript

create-ui-js_2.js

LoginControl.prototype = {
loginInitialize: function(placeHolder, name) {
       var currentInstance = this;
       var view = currentInstance.loginUI;
       currentInstance.name = name;
       view.children('.login-form').submit(function(event) {
            if(currentInstance.loginData.username === '' || currentInstance.loginData.password === '') {
              alert (currentInstance.name + ': Input fields should not be empty');
            } else {
              LoginAdapter.login(currentInstance);
            }
            event.preventDefault();
       });
      
       view.find('input[name=username]').change( function() {
         currentInstance.loginData.username = $(this).val();
       });
      
       view.find('input[name=password]').change( function() {
         currentInstance.loginData.password = $(this).val();
       });
      
       placeHolder.append(view);
    }
};