I'm not sure I understood the question correctly, but I'm guessing you want to reload the page with a GET request using javascript.. if so you can do something like this:
window.location=window.location;
This should trigger a Http GET from your browser. I deliberately didn't use window.reload(); as I think it prompts you to resend your POST variables if you have any - like hitting F5 in your browser. for more info:
http://www.w3schools.com/jsref/obj_location.asp[
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