How to hide address bar on showmodaldialog

Question

Possible Duplicate:
How can I hide the address bar in a modal dialog?

hello guys,

how to hide address bar (location bar ) on showmodaldialog.. code:

                           var dialogFeatures = 'center:yes; dialogWidth:600px; location:no;dialogHeight:400px; edge:raised; help:no; resizable:no; scroll:no; status:no; statusbar:no; toolbar:no; menubar:no; addressbar:no; titlebar:no;';
                            newwindow2=window.showModalDialog('Combo?start1='+calEvent.start+'&end1='+calEvent.end+'&ownerType='+<%= ApplicationConstants.OWNER_TYPE_CALENDAR %>,'app',dialogFeatures);