$(function(){
	$("div.arrow_left").click(function(){
		var gall_id = this.className.replace(/arrow_left\s/, ""),
			w = ($("div.gall ul#" + gall_id + " li").length - 6) * 146,
			next = (($("div.gall ul#" + gall_id)[0].style.left.replace("px", "") * 1) + 146);

		if (next <= 0)
			$("div.gall ul#" + gall_id)[0].style.left = (($("div.gall ul")[0].style.left.replace("px", "") * 1) + 146) + "px";
	});

	$("div.arrow_right").click(function(){
		var gall_id = this.className.replace(/arrow_right\s/, ""),
			w = ($("div.gall ul#" + gall_id + " li").length - 6) * 146,
			next = (($("div.gall ul#" + gall_id)[0].style.left.replace("px", "") * 1) - 146);

		if ((next * -1) <= w)
			$("div.gall ul#" + gall_id)[0].style.left = next + "px";
	});
});