Do Vs Job method call

Hi Guys,

below is a javascript sample code in one of my methods in a CSP page where I'm loading some data from a global to a Javascript arrays, the problem is that if I call the method with do (d ..mymethod()) everything works fine but calling it with Job (J ..mymethod()) it seems that the javascript part is not working, is there a way to fix this?    

The reason why I'm using Job call because I need it to run in background and not to hold other processes.  

&js<
    Sensor='#(Sensor)#';
    maindatafx[Sensor].push(ConvertArr((Fdte),'#(FXData)#'))
linechartdatafx[Sensor].push((Fnum),'#(XFData)#');
linechartlblfx[Sensor].push('#(FLabel)#');maindatafy[Sensor].push(ConvertArr((Fdte),'#(FYData)#'))
linechartdatafy[Sensor].push((Fnum),'#(YFData)#');
linechartlblfy[Sensor].push('#(FLabel)#');maindatafz[Sensor].push(ConvertArr((Fdte),'#(FZData)#'))
linechartdatafz[Sensor].push((Fnum),'#(ZFData)#');
linechartlblfz[Sensor].push('#(FLabel)#');
>

Thanks