jQuery.easing.quart = function (x, t, b, c, d) {
	return -c * ((t = t / d - 1) * t * t * t - 1) + b;
};

$(function () {

	// Rollover
	var image_cache = new Object();
	$('img,input[type=image]').not("[src*='_on.']").each(function () {
		var imgsrc = $(this).attr('src');
		var imgsrc_ov = imgsrc.replace('_of.', '_ov.');
		image_cache[this.src] = new Image();
		image_cache[this.src].src = imgsrc_ov;
		$(this).hover(function () {
			this.src = imgsrc_ov;
		}, function () {
			this.src = imgsrc;
		});
	});

	// PageTop	
	$('a[href^=#], area[href^=#]').not('a[href=#], area[href=#]').click(function () {
		if (location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '') && location.hostname == this.hostname) {
			var $target = $(this.hash);
			$target = $target.length && $target || $('[name=' + this.hash.slice(1) + ']');
			if ($target.length) {
				var targetOffset = $target.offset().top;
				$('html,body').animate({
					scrollTop: targetOffset
				}, 500, 'quart');
				return false;
			}
		}
	});


	// BackgroundImage
	if ($.browser.msie && $.browser.version == 6) {
		try {
			document.execCommand('BackgroundImageCache', false, true);
		} catch (e) {}
	}
	
	

});