blkeyePicNum = 1;
function slideshowBlkEye()
{
   if (blkeyePicNum == 1)
   {
     document.blkeyePic.src = "blkeye2.jpg";
     ++blkeyePicNum;
   }
   else if (blkeyePicNum == 2)
   {
     document.blkeyePic.src = "blkeye3.jpg";
     ++blkeyePicNum;
   }
   else if (blkeyePicNum == 3)
   {
     document.blkeyePic.src = "blkeye1.jpg";
     blkeyePicNum = 1;
   }
}