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 | var Tween = {linear: function (t, b, c, d){
 return c*t/d + b;
 },
 easeIn: function(t, b, c, d){
 return c*(t/=d)*t + b;
 },
 easeOut: function(t, b, c, d){
 return -c *(t/=d)*(t-2) + b;
 },
 easeBoth: function(t, b, c, d){
 if ((t/=d/2) < 1) {
 return c/2*t*t + b;
 }
 return -c/2 * ((--t)*(t-2) - 1) + b;
 },
 easeInStrong: function(t, b, c, d){
 return c*(t/=d)*t*t*t + b;
 },
 easeOutStrong: function(t, b, c, d){
 return -c * ((t=t/d-1)*t*t*t - 1) + b;
 },
 easeBothStrong: function(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;
 },
 elasticIn: function(t, b, c, d, a, p){
 if (t === 0) {
 return b;
 }
 if ( (t /= d) == 1 ) {
 return b+c;
 }
 if (!p) {
 p=d*0.3;
 }
 if (!a || 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;
 },
 elasticOut: function(t, b, c, d, a, p){
 if (t === 0) {
 return b;
 }
 if ( (t /= d) == 1 ) {
 return b+c;
 }
 if (!p) {
 p=d*0.3;
 }
 if (!a || 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;
 },
 elasticBoth: function(t, b, c, d, a, p){
 if (t === 0) {
 return b;
 }
 if ( (t /= d/2) == 2 ) {
 return b+c;
 }
 if (!p) {
 p = d*(0.3*1.5);
 }
 if ( !a || 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 - 0.5*(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 )*0.5 + c + b;
 },
 backIn: function(t, b, c, d, s){
 if (typeof s == 'undefined') {
 s = 1.70158;
 }
 return c*(t/=d)*t*((s+1)*t - s) + b;
 },
 backOut: function(t, b, c, d, s){
 if (typeof s == 'undefined') {
 s = 3.70158;
 }
 return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
 },
 backBoth: function(t, b, c, d, s){
 if (typeof 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;
 },
 bounceIn: function(t, b, c, d){
 return c - Tween['bounceOut'](d-t, 0, c, d) + b;
 },
 bounceOut: function(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 + 0.75) + b;
 } else if (t < (2.5/2.75)) {
 return c*(7.5625*(t-=(2.25/2.75))*t + 0.9375) + b;
 }
 return c*(7.5625*(t-=(2.625/2.75))*t + 0.984375) + b;
 },
 bounceBoth: function(t, b, c, d){
 if (t < d/2) {
 return Tween['bounceIn'](t*2, 0, c, d) * 0.5 + b;
 }
 return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 + c*0.5 + b;
 }
 }
 
 |