/**
 * @author Alexander Farkas
 */

(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)/);
               return [parseFloat(res[1]),res[2],parseFloat(res[3]),res[4]];
           }
        }
	});
    
})(jQuery);

$(document).ready(function()
{
	
	$.fn.kfBox && $('.lightbox').kfBox();
	
	// Menu hover effect:
	(function()
	{
		$('#main-menu li')
			.each(function(i){ $(this).css({ zIndex: 6 - i }); })
		.not('.active')
		.find('span.shade')
			.css({ opacity: 0 })
			.end()
		.find('span.sprite')
			.css({ backgroundPosition: '0 -20px' })		
			.bind('mouseenter', function(){
				$(this)
					.animate({ backgroundPosition: '(0 0)' }, 200, 'swing')
					.find('.shade')
						.animate({ opacity: 1 }, 300, 'linear'); 
			})
			.bind('mouseleave', function(){
				$(this)
					.animate({ backgroundPosition: '(0 -20px)' }, 200, 'swing')
					.find('.shade')
						.animate({ opacity: 0 }, 300, 'linear');
			});
	})();

	
});