I used the flowing code in "CustomActions.xml" :
 

	var dobj = waWindow.getAvailableDlg();
			dobj.OpenDialog("CustomDialog.aspx", 160, 400, false);
			dobj.onclose = function() {
				
			}

I want to pass some value from "CustomDialog.aspx" (i.e. folderID) and read it in "dobj.onclose" function.

Also I want to browse to anther folder location depending on "folderID".