Magento – How to show drop down list in advanced search

If you want to remove the links you can via the Layout XML:

<layout version="0.1.0">
    <default>
        <reference name="footer_links">
             <!-- Remove 'Advanced Search' -->
            <action method="removeLinkByUrl"><url helper="catalogsearch/getAdvancedSearchUrl" /></action>
    </reference>
 </default>
</layout>

To disable the controller itself (while not the cleanest approach is the quickest) create a copy of:

app/code/core/Mage/CatalogSearch/controllers/AdvancedController.php

Into the local code pool app/code/local/Mage/CatalogSearch/controllers/AdvancedController.php

And overwrite the local copy to:

class Mage_CatalogSearch_AdvancedController extends Mage_Core_Controller_Front_Action
{

    public function indexAction()
    {
         $this->_redirectUrl('/');
    }

    public function resultAction()
    {
         $this->_redirectUrl('/');
    }
}

Any requests will be redirected to home.

i found the solution.

<!--Category layered Navigation Layout-->
<catalog_category_layered>
    <reference name="content">
        <block type="catalog/category_view" name="category.products" template="catalog/category/view.phtml">
            <block type="catalog/product_list" name="product_list" template="catalog/product/list.phtml">
                <block type="catalog/layer_view" name="filter_by_attributes" template="catalog/layer/view.phtml"/>                    
                <block type="catalog/product_list_ctoolbar" name="product_list_ctoolbar" template="catalog/product/list/ctoolbar.phtml">                                              
                </block>
                <action method="setToolbarBlockName"><name>product_list_toolbar</name></action>
            </block>
        </block>
    </reference>
</catalog_category_layered>

adding javascript in catalog\layer\view.phtml :

<button onclick="showAttribute()"><?php echo $this->__('Filter') ?></button>
<?php if($this->canShowBlock()): ?>
<div class="block-layered-nav" style="display: none;">
<dl id="narrow-by-list">
    <?php $_filters = $this->getFilters() ?>
    <?php foreach ($_filters as $_filter): ?>
            <?php echo $_filter->setTitle($_filter->getName())->getHtml() ?>
    <?php endforeach; ?>
</dl>
<script type="text/javascript">decorateDataList('narrow-by-list')</script>
</div>
<script type="text/javascript">
 //<![CDATA[
  var _used_filter = [];
  <?php foreach ($_filters as $_filter): ?>
   _used_filter.push('<?php echo $_filter->getRequestVar() ?>');
  <?php endforeach; ?>

  function showAttribute() {
    if(jQuery(".block-layered-nav").is(":visible"))
        jQuery(".block-layered-nav").hide(); 
    else
        jQuery(".block-layered-nav").show();
   }
//]]>
</script>
<?php endif; ?>

modify template\catalog\layer\attribute.phtml :

<div class="filter-box-container">
<select class="filter-atts" id="filter-atts" name="<?php echo $this->getRequestVar()?>[]">
    <option><?php echo $this->__('%s', $this->getTitle()) ?></option>
    <?php foreach ($this->getItems() as $_item):?>
        <option onchange="doFilter()" value="<?php echo $_item->getValue()?>" <?php echo $_item->getIsSelected() ? 'selected':''?>>
            <?php echo $_item->getLabel() ?>        
        </option>
    <?php endforeach ?>
</select>

and the rest is resolved with css