I have been searching in the web for these helpful code for Magento 1x and gather together here for my own purpose. But you want use these codes into your project then please go head.
Get the URL in CMS pages and Static Blocks
1. Base URL
{{store url=""}}
2. Skin URL
{{skin url='imagefolder/image.png'}}
3. Media URL
{{media url="/image.png"}}
4. Store URL
{{store url="pagename.html"}}
Get the URL in phtml file
1. Base URL
Mage::getBaseUrl();
2. Skin URL
Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_SKIN);
2.1 Secure URL
$this->getSkinUrl('imagefolder/image.png', array('_secure'=>true));
2.2 Unsecure URL
$this->getSkinUrl('imagefolder/image.png');
3. Current URL
Mage::helper('core/url')->getCurrentUrl();
4. Js URL
Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_JS);
5. Store URL
Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_WEB);
6. Media URL
Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA);