/**
* @author Alexander Farkas
* v. 1.21
*/


(function($) {
 if(!document.defaultView || !document.defaultView.getComputedStyle){ // IE6-IE8
 var oldCurCSS = jQuery.curCSS;
 jQuery.curCSS = function(elem, name, force){
if(name === 'background-position'){
 name = 'backgroundPosition';
 }
 if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){
 return oldCurCSS.apply(this, arguments);
 }
 var style = elem.style;
 if ( !force && style && style[ name ] ){
 return style[ name ];
 }
 return oldCurCSS(elem, 'backgroundPositionX', force) +' '+ oldCurCSS(elem, 'backgroundPositionY', force);
 };
 }

 var oldAnim = $.fn.animate;
 $.fn.animate = function(prop){
 if('background-position' in prop){
 prop.backgroundPosition = prop['background-position'];
 delete prop['background-position'];
 }
 if('backgroundPosition' in prop){
 prop.backgroundPosition = '('+ prop.backgroundPosition;
 }
 return oldAnim.apply(this, arguments);
 };

 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]];
 }

$.fx.step. backgroundPosition = function(fx) {
if (!fx.bgPosReady) {
 var start = $.curCSS(fx.elem,'backgroundPosition');

 if(!start){//FF2 no inline-style fallback
 start = '0px 0px';
 }

 start = toArray(start);

 fx.start = [start[0],start[2]];

 var end = toArray(fx.options.curAnim.backgroundPosition);
 fx.end = [end[0],end[2]];

 fx.unit = [end[1],end[3]];
 fx.bgPosReady = true;
 }
 //return;
 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];

 };
})(jQuery);



$(function() {

$("#nav li.hom a").hover(
	function() {
		$(this).stop().animate({
			"backgroundPosition": "0px -10px"
		}, 400);
	},
	function() {
		$(this).stop().animate({
			"backgroundPosition": "0px 190px"
		}, 400);
	}
);
$("#nav li.pro a").hover(
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-52px -10px"
		}, 400);
	},
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-52px 200px"
		}, 400);
	}
);
$("#nav li.ser a").hover(
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-120px -10px"
		}, 400);
	},
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-120px 200px"
		}, 400);
	}
);
$("#nav li.new a").hover(
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-186px -10px"
		}, 400);
	},
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-186px 200px"
		}, 400);
	}
);
$("#nav li.car a").hover(
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-236px -10px"
		}, 400);
	},
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-236px 200px"
		}, 400);
	}
);
$("#nav li.abo a").hover(
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-302px -10px"
		}, 400);
	},
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-302px 200px"
		}, 400);
	}
);
$("#nav li.con a").hover(
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-374px -10px"
		}, 400);
	},
	function() {
		$(this).stop().animate({
			"backgroundPosition": "-374px 200px"
		}, 400);
	}
);



});