multi-select product attribute issue

Hi,

I have some problem with multi-select list, I just want to get ONLY selected values from admin panel ( product attributes multi-select list ), the example output is on this URL -> http://frakta.he-hosting.de/silence-4-nm-60.html

This is Product attribute multi-select code from Magento admin panel:

HTML Code:

---

<select>
<option selected="selected" value="17">230V</option>
<option selected="selected" value="18">24VAC</option>
<option value="20">24VAC/DC</option>
<option value="19">24VDC</option>
</select>

---

Here is also my code from view.phtml file (product view):

Code:

---

function getSelectAttributeValues($attrCode)  {
$attributeCode = $attrCode;

 
// build and filter the product collection
$products = Mage::getResourceModel('catalog/product_collection')
->addAttributeToFilter($attributeCode, array('notnull' => true))
->addAttributeToFilter($attributeCode, array('neq' => ''))
->addAttributeToSelect($attributeCode);

// ### it returns all values from multi-select list, but it should return only selected
$usedAttributeValues = array_unique($products->getColumnValues($attributeCode));

// fetch the attribute model
$attributeModel = Mage::getSingleton('eav/config')->getAttribute('catalog_product', $attributeCode);

// map the option id's to option labels
$usedAttributeValues = $attributeModel->getSource()->getOptionText(
implode(',', $usedAttributeValues)
                                                                );   


if (is_array($usedAttributeValues)) {
return implode(', ', $usedAttributeValues);
} else {
return $usedAttributeValues;
}                                               
}

---

Please help me, I'll be gratefull for any advice Smiley Happy