NS4 = (document.layers);
     IE4 = (document.all);
    ver4 = (NS4 || IE4);   
   isMac = (navigator.appVersion.indexOf("Mac") != -1);
  isMenu = (NS4 || (IE4 && !isMac));
function popUp(){return};
function popDown(){return};
function startIt(){return}
if (!ver4) event=null;
if (document.images) {
arImLoad = new Array (
"../../art/b_left_over",
"../../art/b_left_down",
"../../art/b_right_over",
"../../art/b_right_down",
"tri");
arImList = new Array ();
for (counter in arImLoad) {
arImList[counter] = new Image();
arImList[counter].src = arImLoad[counter] + ".gif";
}}
function navOver(imName,dir,over) {
if (!document.images) {return};
whichIm = document.images[imName];
if (over) {whichIm.src = "../../art/b_" + dir + "_over.gif"}
else {whichIm.src = "../../art/b_" + dir + ".gif"}
}
function navPress(imName,dir,press) {
whichIm = document.images[imName];
if (press) {whichIm.src = "../../art/b_" + dir + "_down.gif"}
else {whichIm.src = "../../art/b_" + dir + ".gif"}
}