Hello guys. I'm making a drop down menu and it works great in all modern browser but it fails in IE7 and IE8. when i try to move the mouse from the main menu item to the opened dropdown, this disappears. What do I need here?

This is the page: http://bwp-dev2.wedo-projects.de/ueber-uns/

and this is the JS code

$("nav li").hover(function(){
    
$(".subnavi", $(this)).show();
}, function(){
    
$(".subnavi", $(this)).hide();
});

Appears to be an issue of jQuery when detecting hover over subnavi when it has position absolute...