Wanted: Java script automatic refresh browser and capture new added text/postings with notification

Hello,

I'm looking for advise or/and programmer to create a tool / script
based on Internet browser ( IE , Firefox and etc ) to automatically
refresh the browser ( every 5 sec or so ) and capture new postings
with notification sound and maybe pop-up window. Also with ability to
open multiple tabs or windows.
I'm talking about a website with username and password that has a
search engine and companies are posting loads constantly, but the
search engine doesn't provide any automatic search options, so
basically I need to refresh manually in order to see new posted loads.
So, I'm looking for someone who can help me create a tool that can do
it automatically.

Thanks
.

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