window.onload = init;
function init() {
 document.getElementById('scrollLeft').onmouseover = function(){
	   doScrollLeft('contentScrollBox', 5);
	 };
 document.getElementById('scrollLeft').onmouseout = function(){
	   stopScroll();
	 };
 document.getElementById('scrollRight').onmouseover = function(){
	   doScrollLeft('contentScrollBox', -5);
	 };
 document.getElementById('scrollRight').onmouseout = function(){
	   stopScroll();
	 };
};
var scrolldelay;
function doScrollLeft(el, p)
{ 
  var elRef=document.getElementById(el);
  elRef.scrollLeft = elRef.scrollLeft - p;
  clearTimeout(scrolldelay);
  scrolldelay = setTimeout("doScrollLeft('"+el+"', "+p+")",10);
}
function stopScroll() {
    	clearTimeout(scrolldelay);
}