function randomNumber(lowLim, hiLim)
           {
           var normalVal = (hiLim - lowLim) * Math.random();

           return Math.ceil( normalVal ) + lowLim;
           }   // random Number()
//====================================================================================
// Random Pictures
//====================================================================================

              var maxi_pic = 13
              var ipic = randomNumber(1, maxi_pic);
              pic_images = new Array();
              pic_images[1]  = "pictures/n78.jpg";
              pic_images[2]  = "pictures/damavand.gif";
              pic_images[3]  = "pictures/damavand99.jpg";
              pic_images[4]  = "pictures/caspian_sea.jpg";
              pic_images[5]  = "pictures/kermanshah.jpg";
              pic_images[6]  = "pictures/alahverdi.jpg";
              pic_images[7]  = "pictures/alborz.jpg";
              pic_images[8]  = "pictures/dashet.jpg";
              pic_images[9]  = "pictures/fruit.jpg";
              pic_images[10] = "pictures/ghoroub_damavand.jpg";
              pic_images[11] = "pictures/khaju.jpg";
              pic_images[12] = "pictures/zayandeh_roud.jpg";
              pic_images[maxi_pic] = "pictures/poem.jpg";
                
                            
              function displaypic()
              {

               // alert(ipic);
                document.pictures.src = pic_images[ipic];
              }