// References:
// http://www.cristalab.com/tutoriales/tutorial-de-ecuaciones-de-easing-y-transiciones-de-flash-c58l/
// http://www.timotheegroleau.com/Flash/experiments/easing_function_generator.htm
// http://www.madeinflex.com/img/entries/2007/05/customeasingexplorer.html

js.easing= {
	
	easeDefault: 'linear',
		
	linear: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return b+c*t/d;
	},
	swing: function(i,n,min,max){
		return (1 - Math.cos(i/n*Math.PI)) * (max-min)/2 + min;
	},
	
	// In

	easeInCubicE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.007905138339921014*tc*ts + 0.01976284584980248*ts*ts + 0.9881422924901184*tc + 0*ts + 0*t);
	},
		
	easeInQuinticE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(1*tc*ts + 0*ts*ts + 0*tc + 0*ts + 0*t);
	},
		
	easeInQuarticE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.007905138339920903*tc*ts + 1.007905138339921*ts*ts + 0*tc + 0*ts + 0*t);
	},
		
	easeInQuadraticE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(0.011857707509881464*tc*ts + -0.03952569169960496*ts*ts + 0.03952569169960496*tc + 0.9881422924901184*ts + 0*t);
	},
		
	easeInElasticSmall: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(32.976284584980235*tc*ts + -58.93280632411067*ts*ts + 31.936758893280633*tc + -4.980237154150197*ts + 0*t);
	},
		
	easeInElasticBig: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(56*tc*ts + -105*ts*ts + 60*tc + -10*ts + 0*t);
	},
	
	//jq
	easeInQuad: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c*(t/=d)*t + b;
	},
	easeInCubic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c*(t/=d)*t*t + b;
	},
	easeInQuart: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c*(t/=d)*t*t*t + b;
	},
	easeInQuint: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c*(t/=d)*t*t*t*t + b;
	},
	easeInSine: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
	},
	easeInExpo: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
	},
	easeInCirc: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
	},
	easeInElastic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		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;
	},
	easeInBounce: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c - js.easing.easeOutBounce (d-t, 0, c, d) + b;
	},
	
	// Out
	easeOutCubicE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.007905138339917794*tc*ts + 0.019762845849800925*ts*ts + 0.9881422924901172*tc + -3.003952569169961*ts + 3.0039525691699605*t);
	},
		
	easeOutQuinticE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(1*tc*ts + -5*ts*ts + 10*tc + -10*ts + 5*t);
	},
		
	easeOutQuarticE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.007905138339919127*tc*ts + -0.96837944664032*ts*ts + 3.952569169960477*tc + -5.968379446640316*ts + 3.992094861660079*t);
	},
		
	easeOutElasticSmall: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(34.895*tc*ts + -111.1325*ts*ts + 131.58*tc + -70.09*ts + 15.7475*t);
		//return b+c*(33.01581027667983*tc*ts + -106.02766798418972*ts*ts + 126.00790513833992*tc + -66.99604743083003*ts + 15*t);
	},
		
	easeOutElasticBig: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(53.11462450592884*tc*ts + -163.4584980237154*ts*ts + 182.68774703557312*tc + -88.4584980237154*ts + 17.11462450592885*t);
	},
	
	//jq
	easeOutQuad: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return -c *(t/=d)*(t-2) + b;
	},	
	easeOutCubic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c*((t=t/d-1)*t*t + 1) + b;
	},
	easeOutQuart: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return -c * ((t=t/d-1)*t*t*t - 1) + b;
	},
	easeOutQuint: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c*((t=t/d-1)*t*t*t*t + 1) + b;
	},
	easeOutSine: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	},
	easeOutExpo: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
	},
	easeOutCirc: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
	},
	easeOutElastic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		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;
	},
	easeOutBounce: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		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;
		}
	},
	
	// InOut
	easeInOutCubicE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.007905138339921347*tc*ts + 0.0197628458498027*ts*ts + -2.015810276679842*tc + 3.0039525691699605*ts + 0*t);
	},
		
	easeInOutQuinticE: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(6*tc*ts + -15*ts*ts + 10*tc + 0*ts + 0*t);
	},
	
	//jq
	easeInOutQuad: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		if ((t/=d/2) < 1) return c/2*t*t + b;
		return -c/2 * ((--t)*(t-2) - 1) + b;
	},
	easeInOutCubic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		if ((t/=d/2) < 1) return c/2*t*t*t + b;
		return c/2*((t-=2)*t*t + 2) + b;
	},
	easeInOutQuart: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
		return -c/2 * ((t-=2)*t*t*t - 2) + b;
	},
	easeInOutQuint: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		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;
	},
	easeInOutSine: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
	},
	easeInOutCirc: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		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;
	},
	easeInOutExpo: function(i,n,min,max){
		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;
	},
	easeInOutElastic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		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;
	},
	easeInOutBounce: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		if (t < d/2) return js.easing.easeInBounce(t*2, 0, c, d) * .5 + b;
		return js.easing.easeOutBounce(t*2-d, 0, c, d) * .5 + c*.5 + b;
	},
	
	// OutIn
	easeOutInCubic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.00790513833991957*tc*ts + 0.019762845849800925*ts*ts + 3.992094861660079*tc + -6.007905138339921*ts + 3.0039525691699605*t);
	},
		
	easeOutInQuartic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.007905138339921791*tc*ts + 0.019762845849800925*ts*ts + 5.968379446640319*tc + -8.972332015810277*ts + 3.992094861660079*t);
	},

	// InBack
	easeInBackCubic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(0.031620553359684944*tc*ts + -0.059288537549408105*ts*ts + 4.031620553359684*tc + -3.0039525691699605*ts + 0*t);
	},
		
	easeInBackQuartic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(0.011857707509882244*tc*ts + 1.9762845849802364*ts*ts + 2.015810276679842*tc + -3.0039525691699605*ts + 0*t);
	},
	
	easeInBack: function(i,n,min,max,s){
		var t= i, b= min, c= max-min, d= n;
		if (s == undefined) s = 1.70158;
		return c*(t/=d)*t*((s+1)*t - s) + b;
	},
	
	// OutBack

	easeBackOutCubic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(-0.007905138339915574*tc*ts + 0.019762845849797372*ts*ts + 3.992094861660078*tc + -9.01185770750988*ts + 6.007905138339921*t);
	},
		
	easeBackOutQuartic: function(i,n,min,max){
		var t= i, b= min, c= max-min, d= n;
		var ts= (t/=d)*t;
		var tc= ts*t;
		return b+c*(0.011857707509882688*tc*ts + -2.035573122529648*ts*ts + 10.039525691699607*tc + -15.019762845849804*ts + 8.003952569169961*t);
	},
	
	easeOutBack: function(i,n,min,max,s){
		var t= i, b= min, c= max-min, d= n;
		if (s == undefined) s = 1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	},
	
	// InOutBack
	
	easeInOutBack: function(i,n,min,max,s){
		var t= i, b= min, c= max-min, d= n;
		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;
	}
	
	
}//