var scroll = false;
       
function scrolluj(scrollDiv,scrollText,smer,rychlost)
       {
       scroll = true;
       
       scrolling(scrollDiv,scrollText,smer,rychlost);
       }

function scrolling(scrollDiv,scrollText,smer,rychlost)
       {
       if (scroll == true)
              {
              cislo = parseInt(document.getElementById(scrollText).style.marginLeft);

              width = parseInt(document.getElementById(scrollDiv).style.width);
              
              scrollWidth = parseInt(document.getElementById(scrollText).scrollWidth);
              scrollWidthA = scrollWidth + width - 2 * scrollWidth;
              
              
              if (smer == 'doprava')// && cislo > scrollWidthA)
                     cislo = cislo - 2;
              
              else if (smer == 'doleva' && cislo < 0)
                     cislo = cislo + 2;

              document.getElementById(scrollText).style.marginLeft = cislo + 'px';
              
              setTimeout("scrolling('" + scrollDiv + "','" + scrollText + "','" + smer + "'," + rychlost + ")",rychlost);
              }
       }

function zastav()
       {
       scroll = false;
       }