// JavaScript Document
var box = document.getElementById("box_c"); 
var boxl = document.getElementById("box_l"); 
var boxr = document.getElementById("box_r"); 
var ts = document.getElementById("sorry"); 
i = 0; 
function scrollFunLeft() 
{ 
i++; 
if(box.scrollLeft<720) 
{ 
box.scrollLeft+=i; 
ts.className=""; 
} 
else 
{ 
clearInterval(t); 
i=0; 
ts.className="alert"; 
} 
} 
  
function scrollFunRight() 
{ 
i++; 
if(box.scrollLeft>0) 
{ 
box.scrollLeft-=i; 
ts.className=""; 
} 
else 
{ 
clearInterval(t); 
i=0; 
ts.className="alert"; 
} 
} 
  
boxl.onmouseover = function(){t=setInterval(scrollFunRight,70);boxl.className="down"} 
boxl.onmouseout = function() {clearInterval(t);i=0;boxl.className="";ts.className="";} 
boxr.onmouseover = function(){t=setInterval(scrollFunLeft,70);boxr.className="down";} 
boxr.onmouseout = function() {clearInterval(t);i=0;boxr.className="";ts.className="";}