document.onmousedown = function(){
  var e=arguments[0]||event;
  var x=zxcWWHS()[2]+e.clientX;
  var y=zxcWWHS()[3]+e.clientY;
  document.onmousemove=function(){
  var e=arguments[0]||event;
    window.scroll(x-e.clientX, y-e.clientY);
    return false;
  }
  document.onmouseup=function(){
    document.onmousemove=null;
  }
  return false;
}

function zxcWWHS(){
 if (window.innerHeight) return [window.innerWidth-10,window.innerHeight-10,window.pageXOffset,window.pageYOffset];
 else if (document.documentElement.clientHeight) return [document.documentElement.clientWidth-10,document.documentElement.clientHeight-10,document.documentElement.scrollLeft,document.documentElement.scrollTop];
 return [document.body.clientWidth,document.body.clientHeight,document.body.scrollLeft,document.body.scrollTop];
}
function handle(delta) {
        if (delta <0)
                ScrollSmoothly(10,10,'right');
        else if (delta >0)
                ScrollSmoothly(10,10,'left');
        else
        	;
}