if (document.images)

   {

     image1_off= new Image(300,300);

     image1_off.src="../media/change/1.jpg"; 

     image2_off= new Image(300,300);

     image2_off.src="../media/change/2.jpg";

     image3_off= new Image(300,300);

     image3_off.src="../media/change/3.jpg";
     image4_off= new Image(300,300);

     image4_off.src="../media/change/4.jpg";
     image5_off= new Image(300,300);

     image5_off.src="../media/change/5.jpg";
     image6_off= new Image(300,300);

     image6_off.src="../media/change/6.jpg";
     image7_off= new Image(300,300);

     image7_off.src="../media/change/7.jpg";


   }


function change1(picName,imgName)

 {

   if (document.images)

    {

      imgOn=eval(imgName + ".src");

      document[picName].src= imgOn;

    }


}