(function($) {
	$.extend($.fx.step,{
	    backgroundPosition: function(fx) {
            if (fx.state == 0 && typeof fx.end == 'string') {
                var start = $.curCSS(fx.elem,'backgroundPosition');
                start = toArray(start);
                fx.start = [start[0],start[2]];
                var end = toArray(fx.end);
                fx.end = [end[0],end[2]];
                fx.unit = [end[1],end[3]];
			}
            var nowPosX = [];
            nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
            nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];           
            fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];
            
           function toArray(strg){
               strg = strg.replace(/left|top/g,'0px');
               strg = strg.replace(/right|bottom/g,'100%');
               strg = strg.replace(/(\d+)(\s|\)|$)/g,"$1px$2");
               var res = strg.match(/(\d+)(px|\%|em|pt)\s(\d+)(px|\%|em|pt)/);
							 var res = strg.match(/(-?\d+)(px|\%|em|pt)\s(-?\d+)(px|\%|em|pt)/);
               return [parseFloat(res[1]),res[2],parseFloat(res[3]),res[4]];
           }
        }
	});
    
})(jQuery);

var $j = jQuery.noConflict();

$j(document).ready(function() {										 
	
	$j('ul#menu li a').css({backgroundPosition: '-174px 0'}).hover(
		function () {
			$j(this).animate({backgroundPosition: '(0 0)'});
		}, 
		function () {
			$j(this).animate({backgroundPosition: '(-174px 0)'});
		}
	);
	
	$j('.cenik table td:nth-child(2)').addClass('td-right');
	
	$j('.platno').innerfade({
		speed: 'slow',
		timeout: 8000,
		type: 'sequence',
		containerheight: '251px'
	});
	
});