The code

[TygerShore]

Here is the code that you requested.

<style type="text/css">
/* Transparent Buttons w/ Hover */
a img {
filter: alpha(opacity=70);
-moz-opacity: 0.7;
opacity: 0.7;
}
a:hover img, a:focus img {
filter: alpha(opacity=150);
-moz-opacity: 1.0;
opacity: 1.0;
}
</style>