menu when hover

Do you mean like how I have it at the top of my site?

http://www.viper007bond.com/

I was too lazy to write my own, so I used this code: http://photomatt.net/scripts/intellimenu/

The rest is CSS. Here’s what I’m using as an example:

#nav {
list-style: none;
padding: 0 0 3px 0;
margin: 3px 0 0 3px;
}

#nav #current {
font-weight: bold;
}

#nav a {
background-color: #FFFFFF;
color: #61636A;
font-size: 12px;
font-variant: small-caps;
margin-right: 1px;
padding: 1px 7px 2px 7px;
text-decoration: none;
border: 1px solid #454C67;
}

#nav a:hover, #nav #current {
background-color: #36769C;
color: #FFFFFF;
}

#nav li {
display: inline;
margin: 0;
padding: 0;
}