/*
	Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
	Available via Academic Free License >= 2.1 OR the modified BSD license.
	see: http://dojotoolkit.org/license for details
*/


if(!dojo._hasResource["dojo.fx.easing"]){dojo._hasResource["dojo.fx.easing"]=true;dojo.provide("dojo.fx.easing");dojo.getObject("fx.easing",true,dojo);dojo.fx.easing={linear:function(n){return n;},quadIn:function(n){return Math.pow(n,2);},quadOut:function(n){return n*(n-2)*-1;},quadInOut:function(n){n=n*2;if(n<1){return Math.pow(n,2)/2;}return -1*((--n)*(n-2)-1)/2;},cubicIn:function(n){return Math.pow(n,3);},cubicOut:function(n){return Math.pow(n-1,3)+1;},cubicInOut:function(n){n=n*2;if(n<1){return Math.pow(n,3)/2;}n-=2;return (Math.pow(n,3)+2)/2;},quartIn:function(n){return Math.pow(n,4);},quartOut:function(n){return -1*(Math.pow(n-1,4)-1);},quartInOut:function(n){n=n*2;if(n<1){return Math.pow(n,4)/2;}n-=2;return -1/2*(Math.pow(n,4)-2);},quintIn:function(n){return Math.pow(n,5);},quintOut:function(n){return Math.pow(n-1,5)+1;},quintInOut:function(n){n=n*2;if(n<1){return Math.pow(n,5)/2;}n-=2;return (Math.pow(n,5)+2)/2;},sineIn:function(n){return -1*Math.cos(n*(Math.PI/2))+1;},sineOut:function(n){return Math.sin(n*(Math.PI/2));},sineInOut:function(n){return -1*(Math.cos(Math.PI*n)-1)/2;},expoIn:function(n){return (n==0)?0:Math.pow(2,10*(n-1));},expoOut:function(n){return (n==1)?1:(-1*Math.pow(2,-10*n)+1);},expoInOut:function(n){if(n==0){return 0;}if(n==1){return 1;}n=n*2;if(n<1){return Math.pow(2,10*(n-1))/2;}--n;return (-1*Math.pow(2,-10*n)+2)/2;},circIn:function(n){return -1*(Math.sqrt(1-Math.pow(n,2))-1);},circOut:function(n){n=n-1;return Math.sqrt(1-Math.pow(n,2));},circInOut:function(n){n=n*2;if(n<1){return -1/2*(Math.sqrt(1-Math.pow(n,2))-1);}n-=2;return 1/2*(Math.sqrt(1-Math.pow(n,2))+1);},backIn:function(n){var s=1.70158;return Math.pow(n,2)*((s+1)*n-s);},backOut:function(n){n=n-1;var s=1.70158;return Math.pow(n,2)*((s+1)*n+s)+1;},backInOut:function(n){var s=1.70158*1.525;n=n*2;if(n<1){return (Math.pow(n,2)*((s+1)*n-s))/2;}n-=2;return (Math.pow(n,2)*((s+1)*n+s)+2)/2;},elasticIn:function(n){if(n==0||n==1){return n;}var p=0.3;var s=p/4;n=n-1;return -1*Math.pow(2,10*n)*Math.sin((n-s)*(2*Math.PI)/p);},elasticOut:function(n){if(n==0||n==1){return n;}var p=0.3;var s=p/4;return Math.pow(2,-10*n)*Math.sin((n-s)*(2*Math.PI)/p)+1;},elasticInOut:function(n){if(n==0){return 0;}n=n*2;if(n==2){return 1;}var p=0.3*1.5;var s=p/4;if(n<1){n-=1;return -0.5*(Math.pow(2,10*n)*Math.sin((n-s)*(2*Math.PI)/p));}n-=1;return 0.5*(Math.pow(2,-10*n)*Math.sin((n-s)*(2*Math.PI)/p))+1;},bounceIn:function(n){return (1-dojo.fx.easing.bounceOut(1-n));},bounceOut:function(n){var s=7.5625;var p=2.75;var l;if(n<(1/p)){l=s*Math.pow(n,2);}else{if(n<(2/p)){n-=(1.5/p);l=s*Math.pow(n,2)+0.75;}else{if(n<(2.5/p)){n-=(2.25/p);l=s*Math.pow(n,2)+0.9375;}else{n-=(2.625/p);l=s*Math.pow(n,2)+0.984375;}}}return l;},bounceInOut:function(n){if(n<0.5){return dojo.fx.easing.bounceIn(n*2)/2;}return (dojo.fx.easing.bounceOut(n*2-1)/2)+0.5;}};}