uilib branch: ScrollBar & Slider disabledSrc defaults to enabled/up image.
uilib branch: ScrollBar & Slider disabledSrc defaults to enabled/up image.

svn path=/branches/libavg_uilib/; revision=7865

libavg/libavg,th3infinity/libavg,yyd01245/libavg,hoodie/libavg,scotty007/libavg,libavg/libavg,scotty007/libavg,yyd01245/libavg,scotty007/libavg,hoodie/libavg,hoodie/libavg,scotty007/libavg,th3infinity/libavg,libavg/libavg,yyd01245/libavg,th3infinity/libavg,yyd01245/libavg,libavg/libavg,hoodie/libavg,th3infinity/libavg