var timer;function scrollDenDiv(div,val){var px=10;clearTimeout(timer);d=document.getElementById(div)
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('scrollDenDiv('+"'"+div+"'"+', '+val+')',50);}
if(y<0||y>d.scrollHeight-d.offsetHeight){clearTimeout(timer);}}