Calling CSJS from within SSJS in XPages

xe:dialog control. You can show and hide that dialog using SSJS.

Here are the SSJS and CSJS commands to show/hide the dialog:
SSJS:

var comp = getComponent("serverSideId");
//To Open the dialog
comp.show();
//To close the dialog
comp.hide();

CSJS

//To Open the dialog
XSP.openDialog("#{id:serverSideId}");
//To close the dialog
XSP.closeDialog("#{id:serverSideId}");

And just for fun, SSJS that executes CSJS:

//To Open the dialog
facesContext.getViewRoot().postScript("XSP.openDialog('#{id:serverSideId}')");
//To Close the dialog
facesContext.getViewRoot().postScript("XSP.closeDialog('#{id:serverSideId}')");

資料來源:stackoverflow