if (document.images) {

    image2on = new Image();

    image2on.src = "http://edit.pivotcms.com/toxicmetals/graphics/HM_on.jpg";

    image3on = new Image();

    image3on.src = "http://edit.pivotcms.com/toxicmetals/graphics/TX_on.jpg";

    image4on = new Image();

    image4on.src = "http://edit.pivotcms.com/toxicmetals/graphics/RS_on.jpg";

    image5on = new Image();

    image5on.src = "http://edit.pivotcms.com/toxicmetals/graphics/NW_on.jpg";

    image6on = new Image();

    image6on.src = "http://edit.pivotcms.com/toxicmetals/graphics/LI_on.jpg";

    image7on = new Image();

    image7on.src = "http://edit.pivotcms.com/toxicmetals/graphics/RC_on.jpg";

    image8on = new Image();

    image8on.src = "http://edit.pivotcms.com/toxicmetals/graphics/OU_on.jpg";
    
    image9on = new Image();

    image9on.src = "http://edit.pivotcms.com/toxicmetals/graphics/AB_on.jpg"; 
    
    image10on = new Image();

    image10on.src = "http://edit.pivotcms.com/toxicmetals/graphics/CT_on.jpg";
       
    image2off = new Image();

    image2off.src = "http://edit.pivotcms.com/toxicmetals/graphics/HM_off.jpg";

    image3off = new Image();

    image3off.src = "http://edit.pivotcms.com/toxicmetals/graphics/TX_off.jpg";

    image4off = new Image();

    image4off.src = "http://edit.pivotcms.com/toxicmetals/graphics/RS_off.jpg";

    image5off = new Image();

    image5off.src = "http://edit.pivotcms.com/toxicmetals/graphics/NW_off.jpg";

    image6off = new Image();

    image6off.src = "http://edit.pivotcms.com/toxicmetals/graphics/LI_off.jpg";

    image7off = new Image();

    image7off.src = "http://edit.pivotcms.com/toxicmetals/graphics/RC_off.jpg";

    image8off = new Image();

    image8off.src = "http://edit.pivotcms.com/toxicmetals/graphics/OU_off.jpg";
    
    image9off = new Image();

    image9off.src = "http://edit.pivotcms.com/toxicmetals/graphics/AB_off.jpg";
    
    image10off = new Image();

    image10off.src = "http://edit.pivotcms.com/toxicmetals/graphics/CT_off.jpg";
  
  } 

 
  function changeImages() {

  if (document.images) {

    for (var i=0; i<changeImages.arguments.length; i+=2) {

        document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");

    }

  }

}

// end of javascript file