var px = 5;//mehr=schneller 
var timer; 

function scrollDenDiv(val)
{ 
  clearTimeout(timer); 
  d=document.getElementById('divScroll_1') 
  x=d.scrollLeft; 
  if(val==1)x-=px; 
  if(val==2)x+=px; 
  if(x<=d.scrollWidth-d.offsetWidth+px&&x>=0-px)
  { 
    d.scrollLeft=x; 
    timer=setTimeout('scrollDenDiv('+val+')',50); 
  } 
  if(x<0||x>d.scrollWidth-d.offsetWidth)
  { 
    clearTimeout(timer); 
  } 
} 


function scrollDenDiv2(val)
{ 
  clearTimeout(timer); 
  d=document.getElementById('divScroll_2') 
  x=d.scrollLeft; 
  if(val==1)x-=px; 
  if(val==2)x+=px; 
  if(x<=d.scrollWidth-d.offsetWidth+px&&x>=0-px)
  { 
    d.scrollLeft=x; 
    timer=setTimeout('scrollDenDiv2('+val+')',50); 
  } 
  if(x<0||x>d.scrollWidth-d.offsetWidth)
  { 
    clearTimeout(timer); 
  } 
} 


function scrollDenDiv3(val)
{ 
  clearTimeout(timer); 
  d=document.getElementById('divScroll_3') 
  y=d.scrollTop; 
  if(val==1)y-=px; 
  if(val==2)y+=px; 
  if(y<=d.scrollHeight-d.offsetHeight+px&&y>=0-px)
  { 
    d.scrollTop=y; 
    timer=setTimeout('scrollDenDiv3('+val+')',50); 
  } 
  if(y<0||y>d.scrollHeight-d.offsetHeight)
  { 
    clearTimeout(timer); 
  } 
}