How to open safari, mail and doing call by html href link in UIWebView

I need to do three task in UIWebView,

1. Open safari,
2. Open mail
3. Place the call.

I know that i can do开发者_开发知识库 it by using UIApplication's openURL, but i need to do by using UIWebView only, because my data is coming from server, and i need to do this task in that data, if data has www.link, email addres or call number.

Does anyone knows that what is the actual idea.

Thanks.

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<a href="tel:34444444">a</a>
<a href="sms:34234234">b</a>
<a href="mailto:abc@gmail.com">c</a>