/* grafw tag --- modified 13 July 2005 ---- */

function swit(img)
  {  var wch=(img==1)? "2":"1"
     wch="images/grafw_"+wch+".jpg";
var elem=(document.getElementById)?document.getElementById("sw"):(document.all)?document.all("sw"):null; 
   elem.src=wch          
  }