function srollpan()
{
	var div = $('#brand_block');
	var ul = $('#brand_block ul');
	
	var divWidth = div.width();

	var lastLi = ul.find('li:last-child');

  div.unbind("mousemove"); 

	div.mousemove(function(e) {
		var ulWidth = lastLi[0].offsetLeft + lastLi.outerWidth();	
		var left = (e.pageX - div.offset().left) * (ulWidth-divWidth) / divWidth;
		div.scrollLeft(parseInt(left));
	});
}

$(function(){
  srollpan();
});