[SOLVED] totally confusing possible network infection

Hi all,

I have a very strange situation. I built a website a year or two ago. I had no problems with the site until today when I noticed some odd links which shouldn't be there at the bottom of the site.
Fearing the worst I went about searching for possible infections on the site but found nothing.
In the end I posted on a forum and found that no one but me could see the malicious links.
I therefore assumed it was some malware I had picked up.

This is where it gets interesting I checked the site on another Mac on my network and saw the same links. I grabbed my android handset switched off the wifi went to the site and saw the same links on there.

I do browse the internet with my phone through the wifi network so its plausable that whatever malware has effected the network has infected the phone as well. I've also tested it with a virtual machine running windows vista (installed on the first mac) and see the same links on the same site.
The really weird thing is that I don't have any issues with any website except this one. There are no malware links appearing anywhere else. I would have thought that malware would effect as many web sites as possible rather than singling one out.

So it's only visible on one website to all devices connected to my network running an number of different browsers.

So you can see the site for yourselves the url is https://www.mypinkelephant.co.uk first link i see relates to viagra and looking at the source code of the site suggests it resides between the end of the Id page div and the end of the body tag.

Any ideas of what's wrong and how to fix it? all help welcome

Kind Regards
Neil