Rollovers, DIV ccs myspace Options

[themusicworld205...]

can some one tell me what i can to do
so i can make this codes
to be in top of what ever image....
like a code of "z-index:2" for divs

ABOUT ME:

CODE

<style type="text/css">
a.NAME
{float:left;background:url(Picture_URL_1)repeat 0px 0px;width:XXXpx;height:XXXpx;display:block;}

a.NAME:hover
{float:left;background:url(Picture_URL_2)repeat 0px 0px;}
</style>

I'd Like to Meet

CODE

<a class=NAME href="LINK_URL"></a>

cause every time put this code the rollover is under the picture in top and i want the rollover to be in top of that image not under it !

I MAKING A DIV by the way