Fix wrong variables used in QueryString functions.
Fix wrong variables used in QueryString functions.

Lacra17/stronglink,guiquanz/stronglink,iOSCowboy/stronglink,feld/stronglink,yamingd/stronglink,btrask/stronglink,nkatsaros/stronglink,Ryezhang/stronglink,feld/stronglink,rmoorman/stronglink,feld/stronglink,rmoorman/stronglink,Ryezhang/stronglink,guiquanz/stronglink,btrask/stronglink,nkatsaros/stronglink,btrask/stronglink,rmoorman/stronglink,shaunstanislaus/stronglink,shaunstanislaus/stronglink,nkatsaros/stronglink,iOSCowboy/stronglink,guiquanz/stronglink,yamingd/stronglink,shaunstanislaus/stronglink,Lacra17/stronglink,btrask/stronglink,Lacra17/stronglink,iOSCowboy/stronglink,yamingd/stronglink,Ryezhang/stronglink