source/Core/Config.php
public function getTemplateUrl($file = null, $admin = false, $ssl = null, $lang = null)
    {
        return $this->getShopMainUrl() . $this->getDir($file, $this->_sTemplateDir, $admin, $lang, null, null, false);
    }
public function getTemplateUrl($file = null, $admin = false, $ssl = null, $lang = null)
    {
        return $this->getShopMainUrl() . $this->getDir($file, $this->_sTemplateDir, $admin, $lang, null, null, false);
    }
public function getTemplateUrl ( $ file = null , $ admin = false , $ ssl = null , $ lang = null ) { return $ this -> getShopMainUrl ( ) . $ this -> getDir ( $ file , $ this -> _sTemplateDir , $ admin , $ lang , null , null , false ) ; }
Finds and returns template file or folder url

@param string $file  File name
@param bool   $admin Whether to force admin
@param bool   $ssl   Whether to force ssl
@param int    $lang  Language id

@return string
Finds and returns template file or folder url