[Plugin: SimpleModal Login] Certain webpage elements still accessible despite modal window

It looks like the menu is either flash, or has a higher z-index than the modal.

If it’s flash, you need to set the wmode property for your object and embed elements to either opaque or transparent (reference).

If it’s a z-index issue, you can lower the menu’s z-index in your theme or increase the z-index in SimpleModal. You’ll need to update the JS file:

$('#simplemodal-login-form').modal({
	...,
	zIndex: 2000 // or whatever is higher than the menu z-index
});