function rollIn(imageName) {
  if(!document.images) return;
  document.images[imageName].src = eval(imageName + "On.src");
}

function rollOut(imageName) {
  if(!document.images) return;
  document.images[imageName].src = eval(imageName + "Off.src");
}


var btnOwnersOn = new Image();
btnOwnersOn.src = "/html/global/images/player/tab_owners_over.gif";
var btnOwnersOff = new Image();
btnOwnersOff.src = "/html/global/images/player/tab_owners_off.gif";

var btnMatchupsOn = new Image();
btnMatchupsOn.src = "/html/global/images/player/tab_matchups_over.gif";
var btnMatchupsOff = new Image();
btnMatchupsOff.src = "/html/global/images/player/tab_matchups_off.gif";

var btnStatsOn = new Image();
btnStatsOn.src = "/html/global/images/player/tab_status_over.gif";
var btnStatsOff = new Image();
btnStatsOff.src = "/html/global/images/player/tab_status_off.gif";