Automate a process with imacros or selenium

I need to automate the following simple process in Linkedin: The script (with imacros or selenium - or whatever you explain me is best) should allow me to: a) Insert a bunch of linkedin search urls (url1 to url 100), such as: [login to view URL] [login to view URL] and click to every profile (if possible with random order). Every time the script clicks the profile, it should wait a random time1 (say between 0 and 30 seconds) and then go back to that url1. Then wait another random time2 (say between 0 and 20 seconds). Then choose randomly another profile and wait random time1 (0-30sec), then go back to url1 and wait random time2, etc. When all profiles for url1 have been clicked, then the script should start visiting url2 profiles. Please tell me "random" to know that you've read exactly what I am looking for. thanks sergi