function WarningSigns:load(savegame)

    self.playerCallback = SpecializationUtil.callSpecializationsFunction("playerCallback");
    self.setSign = SpecializationUtil.callSpecializationsFunction("setSign");

    self.ws = {};

    local i=0;
    while true do
        local str = getXMLString(self.xmlFile, string.format("vehicle.warningSigns.sign(%d)#index", i));
        if str == nil then
            break;
        end;
        local node = Utils.indexToObject(self.components, str);
        if node == nil then
            print("[Error::WarningSigns] node for "..tostring(str).." does not exist");
            break;
        end;
        local trigger = Utils.indexToObject( self.components, getXMLString(self.xmlFile, string.format("vehicle.warningSigns.sign(%d)#trigger", i)) );
        if trigger == nil then
            print("[Error::WarningSigns] node is OK, but trigger could not be located. Check line "..tostring(i+1).." in your vehicle.xml");
        end;
        local isVis = getXMLBool(self.xmlFile, string.format("vehicle.warningSigns.sign(%d)#isVisible", i))
        self.ws[i+1] = {};
        self.ws[i+1].node = node;
        self.ws[i+1].trigger = trigger;
        self.ws[i+1].isVis = isVis;
        self.ws[i+1].plIR = false;

        addTrigger( trigger, "playerCallback", self );
        i = i + 1;
    end;

end;