It is possible to preload the initial query form in a number of ways to facilitate
retrievals... see below for possibilities. However due to webcrawler overuse issues
it's not possible to link directly to SNP/variation result tables.
other user vars that may be used include:
ucsq .... sets the consequence filter eg. ucsq=Cn.Cs.Reg
ufups, ufdns .... sets the flank eg. ufups=2000&ufdns=100
usampreg=1 .... preloads the form with an example region spec
gohint=1 .... displays the green "press Next" hint