Test

<div id="vri-container-4414"></div>
<script type="text/javascript">
function $_GET(param) {
  var vars = {};
  window.location.href.replace( location.hash, '' ).replace(
    /[?&]+([^=&]+)=?([^&]*)?/gi, // regexp
    function( m, key, value ) { // callback
      vars[key] = value !== undefined ? value : '';
    }
  );

  if ( param ) {
    return vars[param] ? vars[param] : null;  
  }
  return vars;
}  
  ( function ( v, i, o, m, a ){
    
    $_GET = $_GET();
    calendar_date_from = $_GET['calendar_date_from'];
  calendar_date_to = $_GET['calendar_date_to'];
  persons_children = "none";
  persons_children_ages = $_GET['persons_children_ages_1']+','+$_GET['persons_children_ages_2']+','+$_GET['persons_children_ages_3']+','+$_GET['persons_children_ages_4']+','+$_GET['persons_children_ages_5'];
  if ($_GET['persons_children_ages_1']>0) { persons_children = 1;}
  if ($_GET['persons_children_ages_2']>0) { persons_children = persons_children+1;}
  if ($_GET['persons_children_ages_3']>0) { persons_children = persons_children+1;}
  if ($_GET['persons_children_ages_4']>0) { persons_children = persons_children+1;}
  if ($_GET['persons_children_ages_5']>0) { persons_children = persons_children+1;}
  
  persons_adults = $_GET['persons_adults']*1;
  
  
  
    if ( !( o in v ) ) {
      v.vioma_vri=o;
      v[o] || ( v[o] = function ( ){ ( v[o].q = v[o].q || [] ).push ( arguments ); } );
      m = i.createElement( 'script' ), a = i.scripts[0];
      m.src = 'https://cst-client-channel-747-rxjg.viomassl.com/js/vri/vri.js';
      a.parentNode.insertBefore ( m, a );
    }
  } )( window, document, 'vcst' );
  vcst( {load: 'init', url: 'https://cst-client-channel-747-rxjg.viomassl.com/', set_language: 'de'} );
  
  
  
  vcst( {id: 4414,'calendar_date_from': calendar_date_from,'calendar_date_to': calendar_date_to,'persons_children_ages': persons_children_ages,'persons_children':persons_children,'persons_adults':persons_adults }  );
</script>