don't have that much time, deadline for research 03.09.2012
your coments are essential for my project.
At this late date, I suggest you make it up!
I've never had a problem, but I live in a town that has maybe 10 elevators, no escalators and no malls in sight. Good luck with your project.
"A lot of things were acceptable--until we stopped accepting it." -- Al Sharpton '12