Incy wincy spider

I was on my daily search for today's photo, when I saw this tiny wee spider on one of our outside windows. I'm not sure what sort of spider it is - although I think it is a jumping one. I have enlarged this photo so I could see the spider properly - it is really only a couple or so mm long. You may wish to enlarge it further to see the finer details.

The first lot of our hay is being cut as I'm typing this. The next week is meant to be brilliantly fine, so hopefully we will get this lot and our second lot cut, baled and put in the shed during this period of fine weather.