.editor-toolbar a.button.command-insert-link-modified,
.editor-toolbar a.button.command-insert-link-modified:hover {
    background-position: -154px 0;
}
.editor-toolbar a.button.command-insert-related-link {
    background: url(../images/normal.gif) left top no-repeat;
}
.editor-toolbar a.button.command-insert-related-link:hover {
    background: url(../images/hover.gif) left top no-repeat;
}
.editor-toolbar a.button.command-insert-related-link:hover:active {
    background: url(../images/active.gif) left top no-repeat;
}