/**
 * @author Alexander Farkas
 * v. 1.02
 */
(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(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
               var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
               return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
           }
        }
	});
})(jQuery);

/*---------- 追加 ----------*/

$(function(){
	$('#top_g_navi01 a')
		.css( {backgroundPosition: "0px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(0px 87px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(0px 0px)"}, {duration:300, complete:function(){
				$(this).css({backgroundPosition: "0px 0px"})
			}})
		});
	$('#top_g_navi02 a')
		.css( {backgroundPosition: "-96px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-96px 87px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(-96px 0px)"}, {duration:300, complete:function(){
				$(this).css({backgroundPosition: "-96px 0px"})
			}});
		});
	$('#top_g_navi03 a')
		.css( {backgroundPosition: "-192px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-192px 87px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(-192px 0px)"}, {duration:300, complete:function(){
				$(this).css({backgroundPosition: "-192px 0px"})
			}});
		})
	$('#top_g_navi04 a')
		.css( {backgroundPosition: "-288px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-288px 87px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(-288px 0px)"}, {duration:300, complete:function(){
				$(this).css({backgroundPosition: "-288px 0px"})
			}})
		});
	$('#top_g_navi05 a')
		.css( {backgroundPosition: "-384px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-384px 87px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(-384px 0px)"}, {duration:300, complete:function(){
				$(this).css({backgroundPosition: "-384px 0px"})
			}})
		});
	$('#top_g_navi06 a')
		.css( {backgroundPosition: "-480px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-480px 87px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(-480px 0px)"}, {duration:300, complete:function(){
				$(this).css({backgroundPosition: "-480px 0px"})
			}})
		});
	$('#top_g_navi07 a')
		.css( {backgroundPosition: "-576px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-576px 87px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(-576px 0px)"}, {duration:300, complete:function(){
				$(this).css({backgroundPosition: "-576px 0px"})
			}})
		})
})