Zend-Using ZendX library in Zend

Recently I had to use Jquery UI components in one of my applications.I used ZendX Library to counter the same and I worked upon the same as the same as follows

 In bootstrap.php

       protected function _initJquery() {  
     $view = Zend_Layout::startMvc()->getView();  
     $view->addHelperPath("ZendX/JQuery/View/Helper",  
                 "ZendX_JQuery_View_Helper"  
                );  
     Zend_Controller_Action_HelperBroker::addHelper(  
               new ZendX_JQuery_Controller_Action_Helper_AutoComplete()  
                );  
     $view->jQuery()  
        ->enable()  
        ->setVersion('1.11.0')  
        ->setUiVersion('1.10.4')  
        ->addStylesheet('https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/ui-lightness/jquery-ui.css')  
        ->uiEnable();  
   }  

In View

 <?php  
 $this->jQuery()->addJavascriptFile($this->baseUrl().'/assets/js/validation/jquery.validate.min.js');  
 $this->headScript()->prependFile($this->baseUrl().'/assets/js/validation/myvalidation.js');  
 ?>  

Layout

 <?php   
 echo $this->jQuery();  
 echo $this->jQuery()->uiEnable();  
 echo $this->headScript();  
 echo $this->headLink();  
 echo $this->headTitle('My Website');  
 ?>  

ZendX-Use events and properties of jquery-ui widgets in Zend forms

Recently I added a ZendX Date Picker to one of my Zend Applications now I was able to add properties but I was unable to add events so I had to use another Zend magic function

Zend_Json_Expr

As shown in code below

    /*************Order Date From****************************************/     
         $order_date_from = new ZendX_JQuery_Form_Element_DatePicker('order_date_from',  
               array('jQueryParams' => array('dateFormat' => 'yy-mm-dd',  
                 'onClose'=>new Zend_Json_Expr('function( selectedDate ) {$( "#order_date_to" ).datepicker( "option", "minDate", selectedDate );}')  
                 ))  
           );  
         $order_date_from->setAttribs(array('class'=>"",  
             //'id'=>'datepickerfrom'  
         )  
           );  
         $order_date_from->removeDecorator('DtDdWrapper')  
           ->removeDecorator('HtmlTag')  
           ->removeDecorator('Errors')  
           ->removeDecorator('Label');  
         $this->addElement($order_date_from);  
         /*************Order Date From****************************************/  
         /*************Order Date To****************************************/  
         $order_date_to = new ZendX_JQuery_Form_Element_DatePicker('order_date_to',  
               array('jQueryParams' => array(  
                 'onClose'=>new Zend_Json_Expr('function( selectedDate) {$( "#order_date_from" ).datepicker( "option", "maxDate", selectedDate );}'),  
                 'dateFormat' => 'yy-mm-dd'              
                 ))  
           );  
         $order_date_to->setAttribs(array('class'=>"",  
             //'id'=>'datepickerto'  
         )  
           );  
         $order_date_to->removeDecorator('DtDdWrapper')  
           ->removeDecorator('HtmlTag')  
           ->removeDecorator('Errors')  
           ->removeDecorator('Label');  
         $this->addElement($order_date_to);  
         /*************Order Date To****************************************/