Do you want to use skype button in your webpage to notify your skype status? You can get your skype button and embed in your webpage. Follow the link below to get your skype button.

http://www.skype.com/intl/en-gb/tell-a-friend/wizard/

OR

http://www.skype.com/intl/en/tell-a-friend/get-a-skype-button/

Note
Make sure you have enabled Allow my online status to be shown in web under Tools -> Options -> Privacy Settings

Demo