// Cross browser code to get Document Object Model of the web browser being used
arrowImg = new Array("images/EnterOff.gif","images/EnterOn.gif","images/EnterClick.gif");

if (document.images) {
arr = new Array();
for (var i = 0; i < arrowImg.length; i++) {
    arr[i] = new Image();
    arr[i].src = arrowImg[i];
  }
}

var isAll=0;
var isID=0;
var isLayers=0;

// Netscape IE5 +, Netscape 6+
var isAll=document.all;
var isID=document.getElementById;

// Netscape 4 layers
browserVersion=parseInt(navigator.appVersion);
if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion==4)) {
  isLayers=1;
}

isDHTML=(isAll||isID||isLayers) ? 1 :0;

  // This Functions for rollovers for the arrows adapted
// from "DHTML & CSS" by Jason Cranford Teague

function toggle(imgName,num,whichAry) {	
  if (document.images && imgName) {
    imgName.src = whichAry[num].src;
  }
    return false;
}
// End of rollover code