var imgName;
  var imgImage;
  imgImage = new Image();
  
  var imgArr = new Array(2);
  imgArr[0] = new Image();
  imgArr[0].src = "images/s1.jpg";
  imgArr[1] = new Image();
  imgArr[1].src = "images/s11.jpg";

  function rollover(name){                
    imgName = name; 
    imgImage.src = document[imgName].src
    document[imgName].src = imgArr[1].src;
  }

  function rollout(){                
    document[imgName].src = imgImage.src;
  }


 function GoBack(){
   window.history.go(-1);
 }

 
function newWindow(str){
 dlg=window.open(str,"","status=yes,toolbar=no,location=no,resizable=yes,scrollbars=yes,width=500,height=300"); 
}


function pagePrint(){
 window.print(); 
}

function closeWindow(){
 self.close(); 
}