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();
   img12 = new Image(); 
   img13 = new Image();
   img14 = new Image();
   img15 = new Image();
   img16 = new Image();
   img17 = new Image();
   img18 = new Image();
   img19 = new Image()
   img1.src = "images/inav_home.jpg";
   img2.src = "images/inav_home_off.jpg";
   img3.src = "images/inav_about.jpg";
   img4.src = "images/inav_about_off.jpg";
   img5.src = "images/inav_services.jpg";
   img6.src = "images/inav_services_off.jpg";
   img7.src = "images/inav_advantages.jpg";
   img8.src = "images/inav_advantages_off.jpg";
   img9.src = "images/inav_technologies.jpg";
   img10.src = "images/inav_technologies_off.jpg";
   img11.src = "images/inav_resource.jpg";
   img12.src = "images/inav_resource_off.jpg";
   img13.src = "images/inav_contact.jpg";
   img14.src = "images/inav_contact_off.jpg";
   img15.src = "images/inav_access.jpg";
   img16.src = "images/inav_access_off.jpg";
   img17.src = "images/button_attorneylogin.gif"";
   img18.src = "images/button_technologies.gif";
   img19.src = "images/inside_top2.jpg"
   
}