i am trying to find out which request variable i can use to obtain the current passed url.

example: if someone went to this site:
http://www.somesite.com/Script.fwx?Index=1&Start=20&SomeArray=10

so, in my fwx script:
i want to know they had this in the URL:
lcURL = "/Scripts.fwx?Index1&Start=20&SomeArray=10"