if (document.images) 
{
   img1 = new Image();
   img2 = new Image();
   img3 = new Image();
   img4 = new Image();
   img5 = new Image();
   img6 = new Image();
   img7 = new Image();
   img8 = new Image();
   img9 = new Image();
   img10 = new Image();
   img11 = new Image();
   img1.src = "images/leo1_s.jpg";
   img2.src = "images/leo2_s.jpg"
   img3.src = "images/leo3_s.jpg";
   img4.src = "images/leo4_s.jpg"
   img5.src = "images/leo6_s.jpg";
   img6.src = "images/leo8_s.jpg"
   img7.src = "images/leo9_s.jpg";
   img8.src = "images/leo10_s.jpg"
   img9.src = "images/leo12_s.jpg";
   img10.src = "images/leo13_s.jpg"
   img11.src = "images/leo15_s.jpg";
}