magento-1.7 - Get the id from {{id}} of custom options in magento?

Question

i have class

class mymodule_modulename_Block_Adminhtml_Product_Edit_Options_Option extends Mage_Adminhtml_Block_Catalog_Product_Edit_Tab_Options_Option

in which i write the function to get id

$testid="{{id}}";
        $collection  = Mage::getModel('advanceoption/advanceoptgroup')->getCollection();
        $collection->addFieldToFilter('product_id',$this->getProduct()->getId());
        $collection->addFieldToFilter('option_ids',$optionid);

but it will not pick the id

if page loaded then it will show the id.

Any help appreciated