how can I make a dhtmlxwin abovedhtmlxscheduler lightbox?

As topic, I coustmize my scheduler lightbox and add a button, I hope when I click the button, a dhtmlx window pop up, however the window is always under the scheduler lightbox, is there anybody can help me?

add next as part of scheduler’s initialization

dhtmlXWindows.zIndexStep = 10010

Currently lightbox uses much bigger value of z-index than dhtmlxwindows

ok, it’s resolved, thanks your help!