Remote Login to OSX through web browser?

I have a Mac Mini Server (current model) with ML and ML Server App. I am wondering if there is a way to login to my Mac through a web browser. Simply put, I use Windows 7 at work and would like to be able to access my Mac Desktop at home. I can do it on my iPad through Parallels Remote Desktop but I want to be able to do it from work on my work PC (Win 7 Enterprise)

One problem... I can't install software on my work PC (govt policy) so I was hoping to use a browser if possible.

If this is not possible, does anyone have any other options were I might be able to at least access my files remotely?

Any ideas?

IP