$(function(){
	
	widthty=$('.promotion-box img').outerWidth();
	
	if(widthty>710)
	{
		startAnimate();
	}
});
function startAnimate()
{
	xxx=710;
	$('.promotion-box img').css('right', xxx+'px');
	$('.promotion-box img').animate({right:-widthty+'px'}, 10000, 'linear', function() { startAnimate(); })
}