[SOLVED] How do I add a background image to my navigation bar? phpBB2

I would like to know how to add a background image to my navigation bar. I'm using phpBB2 as I mentioned in the thread title so I can add a code to my templates if you have one.

Thanks.
BrickMaster

Bump - Anyone?

Code:

.mainmenu {
background-image: url('http://s8.directupload.net/images/091211/tmme33dq.png');
background-repeat: repeat-x;
padding-right: 16px;
padding-left: 17px;
margin-left: -13px;
color: #ffffff;
font-size: 13px;
font-weight : bold;
}
a.mainmenu{
text-decoration: none;
color : #ffffff;
}
a.mainmenu:hover{
background-image: url('http://s3.directupload.net/images/091211/gioc9ss6.png');
background-repeat: repeat-x;
padding-right: 15px;
padding-left: 17px;
margin-left: -13px;
color: #ffffff;
font-size: 13px;
font-weight : bold;
text-decoration: none;
}

Deleting pictures of navigation is required.

Thank you that worked great.