EGMap and renderPartial

Hello!

I'm triying to load an EGMap on a partial view. This is my code:

This is the ajax button which calls the action loadmap:

<?php echo CHtml::ajaxsubmitButton ("Press for geolocation",
                              CController::createUrl('organization/loadmap'), 
                              array('update' => '#formMap'));
            ?>

The action loadmap:

$this->renderPartial('_loadMap',array('model'=>$model),false,true);

And finally the partial view:

<div id="formMap">
    <?php
        
        $address = $model->address . ", " . City::model()->giveLocation($model->cityID);
        
        echo $address;
    
        Yii::import('ext.EGMap.*');
        
        $gMap = new EGMap();
        $gMap->zoom = 5;
        $gMap->width = '100%';
        $gMap->height = 200;

        $mapTypeControlOptions = array(
            'position'=> EGMapControlPosition::RIGHT_TOP,
            'style'=>EGMap::MAPTYPECONTROL_STYLE_DEFAULT,
        );

        $gMap->mapTypeId = EGMap::TYPE_HYBRID;
 
        $gMap->mapTypeControlOptions= $mapTypeControlOptions;
 
        // Create geocoded address
        $geocoded_address = new EGMapGeocodedAddress($address);
        $geocoded_address->geocode($gMap->getGMapClient());
 
        // Center the map on geocoded address
        $gMap->setCenter($geocoded_address->getLat(), $geocoded_address->getLng());
 
        // Add marker on geocoded address
        $gMap->addMarker(
            new EGMapMarker($geocoded_address->getLat(), $geocoded_address->getLng())
        );
 
        $gMap->renderMap();

    ?>
</div>

The website loads the div but not the map. Any suggestion???

Thank you so much!!!