Sub menu hidding

Hi
My query is that when i click on a parent menu item then the submenu will open without any problem. I have used click as the style of rollover.But when I click on the submenu then their menu will disaapear. I nede to close the active menu before opening the other menu.
any help
my website is:
iphone.fakharkhalid.com

Thank you

hi
do you have the last version of maximenu ? it seems not, so please upgrade