/* ---- graf switch ----------- modified 31 October 2006 --------------- */

function swit(img)
  {  var wch, posn;
     var wch=(img==1)? "2":"1"
     wch="images/grafw_"+wch+".jpg";
   // get object & allocate src  
     var elem=document.getElementById("sw"); 
     elem.src=wch          
  }
//