Define the zoom property for this document
100 = normal
// zoom in
document.zoom=120;
Return current zoom factor
alert(document.zoom);
Note: this change only the information, but don't change the current view. Works only, if you define this in the open event
Alternative youse document.setzoom() Method
This don't has effect to the position of the document or datawindow
if you want to change a position from dw_2 and other datawindows related to the zoom factor, you must define this in follow way
#jbs
dw_2.y=200 / 100 * document.zoom;