<!--
             
 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(100,80);
              onimage1.src = "gifs/slate1.gif"; 
              offimage1 = new Image(100,80); 
              offimage1.src = "gifs/slate.gif";

              onimage2 = new Image(100,80);
              onimage2.src = "gifs/sandstone1.gif"; 
              offimage2 = new Image(100,80); 
              offimage2.src = "gifs/sandstone.gif";
              
              onimage3 = new Image(100,80);
              onimage3.src = "gifs/lime-stone1.gif"; 
              offimage3 = new Image(100,80); 
              offimage3.src = "gifs/lime-stone.gif";

              onimage4 = new Image(100,80);
              onimage4.src = "gifs/quartzite-stone1.gif"; 
              offimage4 = new Image(100,80); 
              offimage4.src = "gifs/quartzite-stone.gif";

              onimage5 = new Image(100,80);
              onimage5.src = "gifs/granite-stone1.gif"; 
              offimage5 = new Image(100,50); 
              offimage5.src = "gifs/granite-stone.gif";

              onimage6 = new Image(100,80);
              onimage6.src = "gifs/marble1.gif"; 
              offimage6 = new Image(100,80); 
              offimage6.src = "gifs/marble.gif";

              onimage7 = new Image(100,80);
              onimage7.src = "gifs/stoneartifacts1.gif"; 
              offimage7 = new Image(100,80); 
              offimage7.src = "gifs/stoneartifacts.gif";

              onimage8 = new Image(100,80);
              onimage8.src = "gifs/mosaic-border1.gif"; 
              offimage8 = new Image(100,80); 
              offimage8.src = "gifs/mosaic-border.gif";

              
     }
function itson(imgDocID,imgObjName) {
            if (CanAnimate)   
            document.images[imgDocID].src=eval(imgObjName+".src");
                             }
         
//-->