protected function getPurchaseSharingSectionHtml()
    {
        $url = $this->getUrl('adminhtml/adminform/salesharing');
        $formKey = Mage::getSingleton('core/session')->getFormKey();
        $enabled = $this->config->getSalesSharingEnabled() == '1' ? "checked" : "";
        $popupTitle = $this->config->getPopupTitle();
        $imageShare = $this->config->getShareImage();
        $urlShare = $this->config->getShareUrl();
        $titleShare = $this->config->getShareTitle();
        $descriptionShare = $this->config->getShareDescription();
        $disabled = $enabled != "checked" ? 'disabled="disabled"' : "";
        $html = <<<HTML
                <form id="edit_form" name="edit_form" method="post" action="{$url}">
                    <input name="form_key" type="hidden" value="{$formKey}" />
                    <input name="store" type="hidden" value="{$this->storeCode}" />
                    <h4 class="icon-head head-edit-form fieldset-legend">{$this->__('Purchase Sharing')}</h4>
                    <fieldset id="my-fieldset">
                        <table cellspacing="0" class="form-list">
                            <tr>
                                <td class="label">{$this->__('Enable Purchase Sharing')} </td>
                                <td class="input-ele">
                                    <input id="sales_sharing_enable" onclick="toggleSharing();" type="checkbox" class="input-text" name="config[sales_sharing_enable]" size="40" maxlength="32" {$enabled}/>
                                </td>
                            </tr>
                            <tr>
                                <td class="label">{$this->__('Sharing Popup Title')} </td>
                            </tr>
                            <tr>
                                <td class="input-ele" colspan="2">
                                    <input id='popup_title' type="text" class="input-text" name="config[popup_title]" size="70%" value="{$popupTitle}" {$disabled}/>
                                </td>
                            </tr>
                            <tr>
                                <td class="label">{$this->__('Image to be shared')} </td>
                            </tr>
                            <tr>
                                <td class="input-ele" colspan="2">
                                    <input id='image_share' type="text" class="input-text" name="config[image_share]" size="70%" value="{$imageShare}" {$disabled}/>
                                </td>
                            </tr>
                            <tr>
                                <td class="label">{$this->__('URL to be shared')} </td>
                            </tr>
                            <tr>
                                <td class="input-ele" colspan="2">
                                    <input id="url_share" type="text" class="input-text" name="config[url_share]" size="70%" value="{$urlShare}" {$disabled}/>
                                </td>
                            </tr>
                            <tr>
                                <td class="label">{$this->__('Share title')} </td>
                            </tr>
                            <tr>
                                <td class="input-ele" colspan="2">
                                    <input id="title_share" type="text" class="input-text" name="config[title_share]" size="70%" value="{$titleShare}" {$disabled}/>
                                </td>
                            </tr>
                            <tr>
                                <td class="label">{$this->__('Share description')} </td>
                            </tr>
                            <tr>
                                <td class="input-ele" colspan="2">
                                    <input id="description_share" type="text" class="input-text" name="config[description_share]" size="70%" value="{$descriptionShare}" {$disabled}/>
                                </td>
                            </tr>
                            <tr>
                                <td></td>
                                <td><button>Save</button></td>
                            </tr>    
                        </table>
                    </fieldset>
                </form>
HTML;
        return $html;
    }