Current Skin Url

You can easily avail the current URL of your existing Magento theme by using the below-mentioned code:

<?php echo $this->getSkinUrl();?>

I have used following command to get different URL in magento Get Url in phtml files

1. Get Base Url :

Mage::getBaseUrl();

2. Get Skin Url :

Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_SKIN);

(a) Unsecure Skin Url :

$this->getSkinUrl('images/imagename.jpg');

(b) Secure Skin Url :

$this->getSkinUrl('images/imagename.gif', array('_secure'=>true));

3. Get Media Url :

Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA);

4. Get Js Url :

Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_JS);

5. Get Store Url :

Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_WEB);

6. Get Current Url

Mage::helper('core/url')->getCurrentUrl();

Get Url in cms pages or static blocks

1. Get Base Url :

{{store url=""}}

2. Get Skin Url :

{{skin url='images/imagename.jpg'}}

3. Get Media Url :

{{media url='/imagename.jpg'}}

4. Get Store Url :

{{store url='mypage.html'}}

I think this will help you.

When you are using

Mage::getDesign()->getSkinUrl($file = null, array $params = array());  

You should pass in the $file parameter for the resource you are trying to retrieve; e.g.:

Mage::getDesign()->getSkinUrl('images/example.png');  

Magento will automatically search in your site's set theme first and if it's not there it will continue its search using the theme fallback.