header problem in dhtmlxwinz


can i have a help with:

the problem is i have a dhtmlxtabbar >> in content a dhtmlxgrid >> grid row onDblclick function of opening the dhtmlxwindow >> the content of dhtmlxwindow in that way winz.attachURL(url,true) >> and in the content of dhtmlxwin i have button onclick func >> opening another dhtmlxwin it reports that dhtmlxwin is not defined in fact it defined in header ??? is any idea what i making false???

thanks a lot

waiting for solutions

Could you please provide any kind of sample where we can reproduce this issue?