hide the close button

[legend_of_zanado]

:( i wanna hide the close button in my popup window without fullscreen im using code like that but it doesn't work :( Hyberlink1.Attributes.Add("OnClick", "window.open('Edit_Session.aspx',null, 'titlebar=no,menubar= no');");

[eyeseetee]

You cant disable this button However try: window.open('Page.aspx', '', 'Fullscreen=yes'); This will open it full screen so that the close and minimize buttons will be hidden