function return_content()
{
    $OSCOM_CategoryTree = new category_tree();
    $OSCOM_StatusTree = new status_tree();
    $return = '<!-- row start -->';
    $return .= '<div class="row">';
    $return .= '<!-- col starts -->';
    $return .= '<div class="col-md-3">';
    $return .= '<!-- panel starts -->';
    $return .= '<div id="storage" class="panel panel-default">';
    $return .= '<div class="panel-heading">';
    $return .= '<h3 class="panel-title">' . TEXT_PLACE_HOLDER . '</h3>';
    $return .= '</div>';
    $return .= '<div class="panel-body">';
    $return .= 'stuff';
    $return .= '</div>';
    $return .= '<ul id="header-storage" class="list-group">';
    $return .= $OSCOM_StatusTree->getStatusTree();
    $return .= '</ul>';
    $return .= '</div>';
    $return .= '<!-- panel ends -->';
    $return .= '</div>';
    $return .= '<!-- col ends -->';
    $return .= '<!-- board starts -->';
    $return .= '<div class="col-md-9">';
    $return .= '  <div id="header-container" class="drop_area">';
    $return .= $OSCOM_CategoryTree->getTree();
    $return .= '  </div>';
    $return .= '</div>';
    $return .= '<!-- board ends -->';
    $return .= '</div>';
    $return .= '<!-- row ends -->';
    header('Content-Type: application/json');
    echo json_encode($return);
}
<?php

/*
  $Id$

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2014 osCommerce

  Released under the GNU General Public License
*/
require 'includes/application_top.php';
require DIR_WS_INCLUDES . 'bootstrap_top.php';
echo '<div id="dndPlaceHolder">';
echo '<div id="return-form-result"></div>';
$OSCOM_CategoryTree = new category_tree();
$OSCOM_StatusTree = new status_tree();
echo '<div id="header-result" class="container">' . '<!-- row start -->' . '<div class="row">' . '<!-- col starts -->' . '<div class="col-md-3">' . '<!-- panel starts -->' . '<div id="storage" class="panel panel-default">' . '<div class="panel-heading">' . '<h3 class="panel-title">' . TEXT_PLACE_HOLDER . '</h3>' . '</div>' . '<div class="panel-body">' . 'stuff' . '</div>' . '<ul id="header-storage" class="list-group">' . $OSCOM_StatusTree->getStatusTree() . '</ul>' . '</div>' . '<!-- panel ends -->' . '</div>' . '<!-- col ends -->' . '<!-- board starts -->' . '<div class="col-md-9">' . '<div id="header-container" class="drop_area">' . $OSCOM_CategoryTree->getTree() . '  </div>' . '</div>' . '</div>' . '<!-- board ends -->' . '</div>' . '<!-- row ends -->' . '</div>';
echo '</div><!-- dndPlaceHolder ends -->';
require DIR_WS_INCLUDES . 'bootstrap_bottom.php';
require DIR_WS_INCLUDES . 'application_bottom.php';
$content .= '<ul class="dropdown-menu" role="menu">';
$content .= '<li><a data-action="create_header" data-type="dropdown" class="action "href="#">New Dropdown</a></li>';
$content .= '<li><a data-action="create_header" data-type="dropdowncat" class="action "href="#">New Cat dropdown</a></li>';
$content .= '<li class="divider"></li>';
$content .= '<li><a data-action="create_header" data-type="form" class="action "href="#">New Form</a></li>';
$content .= '<li><a data-action="create_header" data-type="formsearch" class="action "href="#">New Search Form</a></li>';
$content .= '<li class="divider"></li>';
$content .= '<li><a data-action="create_header" data-type="text" class="action "href="#">New Text</a></li>';
$content .= '<li><a data-action="create_header" data-type="link" class="action "href="#">New Link</a></li>';
$content .= '<li><a data-action="create_header" data-type="logo" class="action "href="#">New Logo</a></li>';
$content .= '<li><a data-action="create_header" data-type="cart" class="action "href="#">New *cart</a></li>';
$content .= '<li><a data-action="create_header" data-type="button" class="action "href="#">New Button</a></li>';
$content .= '<li><a data-action="create_header" data-type="language" class="action "href="#">New language</a></li>';
$content .= '</ul>';
$content .= '</div>';
$content .= '</div>';
$content .= '<div class="col-md-4 text-center">';
$content .= '<a href="bts_css_editor.php" type="button" class="btn btn-danger">Css Editor</a>';
$content .= '</div>';
$content .= '</div><br/>';
echo $content;
echo '<div id="return-form-result"></div>';
/* call the template builder class and set the default template id*/
$OSCOM_CategoryDemoTree = new category_demo_tree();
$OSCOM_CategoryDemoTree->setRootCategoryID($template_id);
/* Compile the unused element tree structure -left sidebar*/
$OSCOM_StatusTree = new status_tree();
echo '<div class="contentContainer"><div id="header-result" class="container">' . '<!-- row start -->' . '<div class="row">' . '<!-- col starts -->' . '<div class="col-md-3">' . '<!-- panel starts -->' . '<div id="storage" class="panel panel-default">' . '<div class="panel-heading">' . '<h3 class="panel-title">' . TEXT_PLACE_HOLDER . '</h3>' . '</div>' . '<ul id="header-storage" class="list-group">' . $OSCOM_StatusTree->getStatusTree() . '</ul>' . '</div>' . '<!-- panel ends -->' . '</div>' . '<!-- col ends -->' . '<!-- board starts -->' . '<div class="col-md-9">' . '<div id="header-container" class="drop_area">' . '<!-- template Starts -->' . '<div class="col-md-12 alert alert-template dragMe" data-element-id="' . $template_id . '" id="' . $template_id . '" draggable="false">' . '<span class="label label-template">' . $OSCOM_CategoryDemoTree->getData($template_id, 'name') . '</span>' . $OSCOM_CategoryDemoTree->getTree() . '  </div><!-- template Ends -->' . '  </div>' . '</div>' . '</div>' . '<!-- board ends -->' . '</div>' . '<!-- row ends -->' . '</div>';
echo '</div><!-- dndPlaceHolder ends -->';
require DIR_WS_INCLUDES . 'template_bottom.php';
require DIR_WS_INCLUDES . 'application_bottom.php';
function return_content()
{
    global $template_id;
    $OSCOM_StatusTree = new status_tree();
    $OSCOM_CategoryDemoTree = new category_demo_tree();
    $OSCOM_CategoryDemoTree->setRootCategoryID($template_id);
    //$OSCOM_StatusTree = new status_tree();
    //$OSCOM_StatusTree->setRootCategoryID($template_id);
    $return = '<!-- row start -->';
    $return .= '<div class="row">';
    $return .= '<!-- col starts -->';
    $return .= '<div class="col-md-3">';
    $return .= '<!-- panel starts -->';
    $return .= '<div id="storage" class="panel panel-default">';
    $return .= '<div class="panel-heading">';
    $return .= '<h3 class="panel-title">' . TEXT_PLACE_HOLDER . '</h3>';
    $return .= '</div>';
    //$return .= '<div class="panel-body">';
    //$return .= 'stuff';
    //$return .= '</div>';
    $return .= '<ul id="header-storage" class="list-group">';
    $return .= $OSCOM_StatusTree->getStatusTree();
    $return .= '</ul>';
    $return .= '</div>';
    $return .= '<!-- panel ends -->';
    $return .= '</div>';
    $return .= '<!-- col ends -->';
    $return .= '<!-- board starts -->';
    $return .= '<div class="col-md-9">';
    $return .= '  <div id="header-container" class="drop_area">';
    $return .= '<!-- template Starts -->';
    $return .= ' <div class="col-md-12 breadcrumb alert alert-template dragMe" data-element-id="' . $template_id . '" id="' . $template_id . '" draggable="false">';
    $return .= '  <span class="label label-template">' . $OSCOM_CategoryDemoTree->getData($template_id, 'name') . '</span>';
    $return .= $OSCOM_CategoryDemoTree->getTree();
    $return .= ' </div>';
    $return .= '<!-- template Ends -->';
    $return .= '  </div>';
    $return .= '</div>';
    $return .= '<!-- board ends -->';
    $return .= '</div>';
    $return .= '<!-- row ends -->';
    header('Content-Type: application/json');
    echo json_encode($return);
}