function rollimage_on(whichimg,message){
   if (document.getElementById || document.all) {
      var el = document.getElementById? document.getElementById("header-lower-l"): document.all["header-lower-l"];
      if (el && typeof el.innerHTML != "undefined") el.innerHTML = "<h2>" + message + "</h2>";
   }
	document.images[whichimg].src = document.images[whichimg].src.replace(/_out/,"_ovr");	
}

function rollimage_off(whichimg){
   if (document.getElementById || document.all) {
      var el = document.getElementById? document.getElementById("header-lower-l"): document.all["header-lower-l"];
      if (el && typeof el.innerHTML != "undefined") el.innerHTML = "";
   }
	document.images[whichimg].src = document.images[whichimg].src.replace(/_ovr/,"_out");
}