An a 'mouse over' to image to forward to a URl

Hi Guys.

Could you tell me what code I would need to add/use a 'mouse over' for the following image:-

<center><img src="http://web-me.at/wp-content/uploads/2015/02/web-me-at-logo1.png" alt="web-me-at logo1" width="387" height="133" class="alignnone size-full wp-image-613" /><center/>

......to take a visitor to 'www.web-me.at'

Thanking you in advance.

Regards

johnv