jQuery.easing['jswing'] = jQuery.easing['swing'];

jQuery.extend( jQuery.easing,
        {
def: 'easeOutQuad',
swing: function (x, t, b, c, d) {
//alert(jQuery.easing.default);
return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
},
easeInQuad: function (x, t, b, c, d) {
return c*(t/=d)*t + b;
},
easeOutQuad: function (x, t, b, c, d) {
return -c *(t/=d)*(t-2) + b;
},
easeInOutQuad: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t + b;
return -c/2 * ((--t)*(t-2) - 1) + b;
},
easeInCubic: function (x, t, b, c, d) {
return c*(t/=d)*t*t + b;
},
easeOutCubic: function (x, t, b, c, d) {
                  return c*((t=t/d-1)*t*t + 1) + b;
              },
easeInOutCubic: function (x, t, b, c, d) {
                    if ((t/=d/2) < 1) return c/2*t*t*t + b;
                    return c/2*((t-=2)*t*t + 2) + b;
                },
easeInQuart: function (x, t, b, c, d) {
                 return c*(t/=d)*t*t*t + b;
             },
easeOutQuart: function (x, t, b, c, d) {
                  return -c * ((t=t/d-1)*t*t*t - 1) + b;
              },
easeInOutQuart: function (x, t, b, c, d) {
                    if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
                    return -c/2 * ((t-=2)*t*t*t - 2) + b;
                },
easeInQuint: function (x, t, b, c, d) {
                 return c*(t/=d)*t*t*t*t + b;
             },
easeOutQuint: function (x, t, b, c, d) {
                  return c*((t=t/d-1)*t*t*t*t + 1) + b;
              },
easeInOutQuint: function (x, t, b, c, d) {
                    if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
                    return c/2*((t-=2)*t*t*t*t + 2) + b;
                },
easeInSine: function (x, t, b, c, d) {
                return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
            },
easeOutSine: function (x, t, b, c, d) {
                 return c * Math.sin(t/d * (Math.PI/2)) + b;
             },
easeInOutSine: function (x, t, b, c, d) {
                   return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
               },
easeInExpo: function (x, t, b, c, d) {
                return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
            },
easeOutExpo: function (x, t, b, c, d) {
                 return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
             },
easeInOutExpo: function (x, t, b, c, d) {
                   if (t==0) return b;
                   if (t==d) return b+c;
                   if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
                   return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
               },
easeInCirc: function (x, t, b, c, d) {
                return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
            },
easeOutCirc: function (x, t, b, c, d) {
                 return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
             },
easeInOutCirc: function (x, t, b, c, d) {
                   if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
                   return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
               },
easeInElastic: function (x, t, b, c, d) {
                   var s=1.70158;var p=0;var a=c;
                   if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
                   if (a < Math.abs(c)) { a=c; var s=p/4; }
                   else var s = p/(2*Math.PI) * Math.asin (c/a);
                   return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
               },
easeOutElastic: function (x, t, b, c, d) {
                    var s=1.70158;var p=0;var a=c;
                    if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
                    if (a < Math.abs(c)) { a=c; var s=p/4; }
                    else var s = p/(2*Math.PI) * Math.asin (c/a);
                    return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
                },
easeInOutElastic: function (x, t, b, c, d) {
                      var s=1.70158;var p=0;var a=c;
                      if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
                      if (a < Math.abs(c)) { a=c; var s=p/4; }
                      else var s = p/(2*Math.PI) * Math.asin (c/a);
                      if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
                      return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
                  },
easeInBack: function (x, t, b, c, d, s) {
                if (s == undefined) s = 1.70158;
                return c*(t/=d)*t*((s+1)*t - s) + b;
            },
easeOutBack: function (x, t, b, c, d, s) {
                 if (s == undefined) s = 1.70158;
                 return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
             },
easeInOutBack: function (x, t, b, c, d, s) {
                   if (s == undefined) s = 1.70158; 
                   if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
                   return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
               },
easeInBounce: function (x, t, b, c, d) {
                  return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
              },
easeOutBounce: function (x, t, b, c, d) {
                   if ((t/=d) < (1/2.75)) {
                       return c*(7.5625*t*t) + b;
                   } else if (t < (2/2.75)) {
                       return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
                   } else if (t < (2.5/2.75)) {
                       return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
                   } else {
                       return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
                   }
               },
easeInOutBounce: function (x, t, b, c, d) {
                     if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
                     return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
                 }
});