Problem with onMarkerHit.

[Rat32]

Why it doesn't work?

function infomech(hitElement, matchingDimension) 
if source == hitElement then 
triggerClientEvent(hitElement, "mechinfo", resourceRoot) 
outputChatBox("NO!") 
end 
end 
addEventHandler("onMarkerHit", mechpraca, infomech) 

[WhoAmI]

Source of onMarkerHit event is marker and hitElement is an element which has entered the marker.