Skill problem with Javascript API

Hi, i have a problem with my selected Skill.

for some reason, when i set the skill in the chat window, i can see it on the agent console, but the agent tells me that i got to the wrong skill..

i set the skill after the lpChatConfig is set (i cant use: "lpChatConfig.skill = theSkillName;")

i try to set the skill later on, after the user had chose a skill.

using both ways:

lpc.setCustomVariable('skill', subject);

and

lpc.skill = subject;  (right before i call : lpc.requestChat();)

here is a picture: