Yahoo / Gtalk link in Joomla

I have a website developed in Joomla. I want to add my gtalk id on image of gtalk. That is if any user clicks on image of gtalk than he/she should be able to add my id to t开发者_JAVA技巧heir gtalk account. Same way for Yahoo.

I have tried to do it in module with code

<a mce_href="http://mce_host/gtalk:call?jid=abc@gmail.com" href="gtalk:call?jid=abc@gmail.com">

but joomla removes my code mce_href="http://mce_host/gtalk:call?jid=abc@gmail.com"

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Some code will get stripped out on save if you have an editor enabled. Disable the editor from the config by setting to none and then Joomla will not strip out your code.