#subnav_btn1 a{background: url(/bookfairs/assets/images/30/contest_nav_btn1.gif) left top no-repeat; text-decoration: none; width:296px; height:27px; float:left;}
#subnav_btn1 a:hover{background-position: 0 -27px;}
#subnav_btn2 a{background: url(/bookfairs/assets/images/30/contest_nav_btn2.gif) left top no-repeat; text-decoration: none; width:258px; height:27px; float:left;}
#subnav_btn2 a:hover{background-position: 0 -27px;}
#subnav_btn3 a{background: url(/bookfairs/assets/images/30/contest_nav_btn3.gif) left top no-repeat; text-decoration: none; width:179px; height:27px; float:left;}
#subnav_btn3 a:hover{background-position: 0 -27px;}
#subnav_btn4 a{background: url(/bookfairs/assets/images/30/contest_nav_btn4.gif) left top no-repeat; text-decoration: none; width:179px; height:27px; float:left;}
#subnav_btn4 a:hover{background-position: 0 -27px;} 
#subnav_container{width:912px; height:27px; margin-left:4px; overflow:hidden;}

body#elem_fall_11 a#elem_subnav,
body#elem_spring_11 a#elem_subnav,
body#elem_fall_10 a#elem_subnav,
body#elem_spring_10 a#elem_subnav,
body#elem_fall_09 a#elem_subnav,
body#elem_spring_09 a#elem_subnav
{
background: url(/bookfairs/assets/images/30/contest_nav_btn1.gif) left top no-repeat;
background-position: 0 -27px;
}

body#middle_fall_11 a#middle_subnav,
body#middle_spring_11 a#middle_subnav,
body#middle_fall_10 a#middle_subnav,
body#middle_spring_10 a#middle_subnav,
body#middle_fall_09 a#middle_subnav,
body#middle_spring_09 a#middle_subnav
{
background: url(/bookfairs/assets/images/30/contest_nav_btn2.gif) left top no-repeat;
background-position: 0 -27px;
}

body#kaa_getstarted a#kaa_subnav,
body#kaa_guidelines a#kaa_subnav,
body#kaa_prizes a#kaa_subnav,
body#kaa_howtoenter a#kaa_subnav,
body#kaa_winners a#kaa_subnav {
background: url(/bookfairs/assets/images/30/contest_nav_btn3.gif) left top no-repeat;
background-position: 0 -27px;
}

body#maximum_ride a#sweepstakes_subnav,
body#library_makeover a#sweepstakes_subnav{
background: url(/bookfairs/assets/images/30/contest_nav_btn4.gif) left top no-repeat;
background-position: 0 -27px;
}