DHTML dropdown menu’s have been greatly improved in terms of accessibility, standards compliance, and weight using the Suckerfish technique of building pure CSS-based menus and then attaching a small javascript that allows Internet Explorer 6 to mimic the CSS hover method. Once the die-hards hanging onto IE6 let go, we won’t have to worry much about this anymore, but for now it looks like it’s going to linger for a bit.
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