$j(document).ready( function() {
	if($j("#gal_nav")) {
		makeAjax.start();
	}
});

var makeAjax = new Object({


	start: function() {

	$j.listen('click','#anext',function() {
		var wd = $j(".gal").width();
		var mrl = $j(".gal").css("margin-left");
		var slide;
		mrl = mrl.replace(/px/,"");
		slide = 420;
		$j(".gal").animate({marginLeft: "-="+slide+"px"}, "slow");
		$j("#aprev").css("display","inline");
		$j("#prev").css("background","url(images/arrow_left.gif) no-repeat 0px 0px");
		mrl=parseFloat(mrl);
		if(wd+mrl-420<=420)
		{
			$j("#anext").css("display","none");
			$j("#next").css("background","none");
		}

		return false;

	});

	$j.listen('click','#aprev',function() {
		var wd = $j(".gal").width();
		var mrl = $j(".gal").css("margin-left");
		var slide;
		mrl = mrl.replace(/px/,"");
		slide = 420;
		$j(".gal").animate({marginLeft: "+="+slide+"px"}, "slow");
		$j("#anext").css("display","inline");
		$j("#next").css("background","url(images/arrow_right.gif) no-repeat 67px 0px");
		mrl=parseFloat(mrl);
		if(mrl + 420==0)
		{
			$j("#aprev").css("display","none");
			$j("#prev").css("background","none");
		}

		return false;

	});

}

});