gistfile1.js

( function ( my, $ ) {
    //Implements the modal logic on the create article button
    my.CreateArticleButton = function ( ) {
       var _src = 'MyCompany.MyProject.CreateArticleButton';
       //if the button is pressed we load the article creation modal

       var _dialog = function ( ) {
           console.log ( _src + '.dialog initiating modal window' )
           var _options = {
               tite : 'Create News Item',
               url : _spPageContextInfo.siteServerRelativeUrl + '/Style Library/MyProject/Modal/createarticle.aspx?IsDlg=1', 
     ​          allowMaximize : false,
               dialogReturnValueCallback : _close
           };
           SP.SOD.execute ( 'sp.ui.dialog.js', 'SP.UI.ModalDialog.showModalDialog', _options );
           console.log ( _src + '.dialog loading modal window' );
       };

       var _close = function ( ) {
           console.log ( _src + '.close modal window' );
       };​

       ( function ( ) {
          //auto execute code for click event
          console.log ( _src + ' initiating modal script' );
          _dialog ( );
       })( );
    };
    //DO OTHER STUFF…
} ) ( MyCompany.MyProject = MyCompany.MyProject || { }, jQuery );