ive started a version checker for my script but not shore of exactly how to doit .
1) i want it to show a message if its out of date and give a link
2) show a message to say its uptodate

any help would be appreciated i have designed the variable from the server but need this script to do rest

http://www.mysite.com/check.php?version=1.0.0

then if 1.0.0 the version is outdated but if 1.0.1 the version is current and uptodate

thank you