Double underline, with css Options

[femmefutile]

Im a newbie to css and stuff and I was wondering what i should put to this code to make it write a double underline when i use the underline tags.

This is the stylesheet:

CODE

u {
font-family: arial;
font-size: 8pt;
color: 304973;
}

Thanks.

[*mipadi*]

I'd do this:

CODE

u {
    font-family:Arial;
    font-size:8pt;
    color:#304973;
    text-decoration:none; /* Turns off underlining */
    border-bottom:Xpx double #304973; /* Adds a double underline */
}

Change X (in Xpx) to the size of the broder, in pixels.