var movement=430;
	//var max_left=-1720;
	var max_right=movement;
	var pos=0;
	function moveLeft(){
		new_pos=pos-movement;
		if (new_pos!=(max_left)){
			$("#dentro").animate({left: new_pos}, 500, function(){ pos=$("#dentro").css("left"); pos=pos.replace("px",""); });
		}
	}
	function moveRight(){
		new_pos=parseInt(pos)+parseInt(movement);
		if (new_pos!=max_right){
			$("#dentro").animate({left: new_pos}, 500, function(){ pos=$("#dentro").css("left"); pos=pos.replace("px",""); });
		}
	}