{
               toc1on = new Image;
               toc1on.src = "graphics/site/tab1_on.gif";

               toc2on = new Image;
               toc2on.src = "graphics/site/tab2_on.gif";

               toc3on = new Image;
               toc3on.src = "graphics/site/tab3_on.gif";

               toc4on = new Image;
               toc4on.src = "graphics/site/tab4_on.gif";

               toc5on = new Image;
               toc5on.src = "graphics/site/tab5_on.gif";

               toc6on = new Image;
               toc6on.src = "graphics/site/tab6_on.gif";


               toc1off = new Image;
               toc1off.src = "graphics/site/tab1.gif";

               toc2off = new Image;
               toc2off.src = "graphics/site/tab2.gif";

               toc3off = new Image;
               toc3off.src = "graphics/site/tab3.gif";

               toc4off = new Image;
               toc4off.src = "graphics/site/tab4.gif";

               toc5off = new Image;
               toc5off.src = "graphics/site/tab5.gif";

               toc6off = new Image;
               toc6off.src = "graphics/site/tab6.gif";

               }
      
               function img_act(imgName) {

             {

               document [imgName].src = eval(imgName + "on.src");

               }

       }

               function img_inact(imgName) {

               {

               document [imgName].src = eval(imgName + "off.src");

               }

       }