API GetTradeSkillSelectionIndex

Returns the index of the currently selected trade skill.
 local tradeSkillIndex = GetTradeSkillSelectionIndex()
==Parameters==
===Returns===
:;tradeSkillIndex: - The index of the currently selected trade skill, or 0 if none selected.
==Example==
 if ( GetTradeSkillSelectionIndex() > 1 ) then
 TradeSkillFrame_SetSelection(GetTradeSkillSelectionIndex());
 else
 if ( GetNumTradeSkills() > 0 ) then
 TradeSkillFrame_SetSelection(GetFirstTradeSkill());
 end;
 end;