<!--
             
 browserName = navigator.appName;
 browserVer = parseInt(navigator.appVersion);
condition1 = (browserName.indexOf("Netscape") >=0 ) && browserVer > 2 ;
condition2 = (browserName.indexOf("Explorer") >= 0) && browserVer > 3
if (condition1 == true  || condition2 == true)
                                 CanAnimate = true;
else
    {CanAnimate = false; }
if (CanAnimate) {

onimage1 = new Image(216,18);
              onimage1.src = "gifs/arrow-up.gif"; 
              offimage1 = new Image(216,18); 
              offimage1.src = "gifs/arrow.gif"

             }
function itson(imgDocID,imgObjName) {
            if (CanAnimate)   
            document.images[imgDocID].src=eval(imgObjName+".src");
                             }
         
//-->