repeating image down sides, i want to repeat an image down both sides of my layout Options

[brooklyneast05]

this is my code for my background image


body {
background-color: 660000;
background-image: url("http://i6.photobucket.com/albums/y242/brooklyneast05/Myspace/Myspace_v2_by_wireless_studios.jpg");
background-repeat: repeat y;
background-attachment: scroll;
background-position: top left
}


i want it to only be repeating down BOTH the sides, not repeating over the whole layout, how would i do that?

[brooklyneast05]

so i did that, and it looks good on my comp
but not on different resolutions
im not sure how to lock it in place
or if thats even possible