old_contents: 
  // add article
  
  // init (autorun)
  if ( $( '#add_article_form' ).length > 0 ) {
  
  	// add ajax handler
  	zForm.addAjaxHandler ({
  
  		// action before sending a request
  		_before: function () { // optional
  			loader.show ( 'add_article' );
  		},
  
  		// action after receiving a response
  		_preResponse: function () { // optional
  			loader.hide ( 'add_article' );
  		},
  
  		// results
  		ok: function () {
  			window.location = '/article/' + zForm.currentAjaxResponse.id_article;
  		}
  	});
  
  };
new_contents: 
  // add article
  
  // init (autorun)
  if ( $( '#add_article_form' ).length > 0 ) {
  
  	// add ajax handler
  	zForm.addAjaxHandler ({
  
  		// action before sending a request
  		_before: function () { // optional
  			loader.show ( 'add_article' );
  		},
  
  		// action after receiving a response
  		_preResponse: function () { // optional
  			loader.hide ( 'add_article' );
  		},
  
  		// results
  		ok: function () {
  			window.location = '/article/' + zForm.currentAjaxResponse.article.id_article;
  		}
  	});
  
  };
subject: edit article