/* * jQuery Easing v1.1.1 - http://gsgd.co.uk/sandbox/jquery.easing.php * * Uses the built in easing capabilities added in jQuery 1.1 * to offer multiple easing options * * Copyright (c) 2007 George Smith * Licensed under the MIT License: * http://www.opensource.org/licenses/mit-license.php */ jQuery.extend(jQuery.easing, { easein: function(x, t, b, c, d) { return c*(t/=d)*t + b; // in }, easeinout: function(x, t, b, c, d) { if (t < d/2) return 2*c*t*t/(d*d) + b; var ts = t - d/2; return -2*c*ts*ts/(d*d) + 2*c*ts/d + c/2 + b; }, easeout: function(x, t, b, c, d) { return -c*t*t/(d*d) + 2*c*t/d + b; }, expoin: function(x, t, b, c, d) { var flip = 1; if (c < 0) { flip *= -1; c *= -1; } return flip * (Math.exp(Math.log(c)/d * t)) + b; }, expoout: function(x, t, b, c, d) { var flip = 1; if (c < 0) { flip *= -1; c *= -1; } return flip * (-Math.exp(-Math.log(c)/d * (t-d)) + c + 1) + b; }, expoinout: function(x, t, b, c, d) { var flip = 1; if (c < 0) { flip *= -1; c *= -1; } if (t < d/2) return flip * (Math.exp(Math.log(c/2)/(d/2) * t)) + b; return flip * (-Math.exp(-2*Math.log(c/2)/d * (t-d)) + c + 1) + b; }, bouncein: function(x, t, b, c, d) { return c - jQuery.easing['bounceout'](x, d-t, 0, c, d) + b; }, bounceout: 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; } }, bounceinout: function(x, t, b, c, d) { if (t < d/2) return jQuery.easing['bouncein'] (x, t*2, 0, c, d) * .5 + b; return jQuery.easing['bounceout'] (x, t*2-d,0, c, d) * .5 + c*.5 + b; }, elasin: 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; }, elasout: 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; }, elasinout: 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; }, backin: function(x, t, b, c, d) { var s=1.70158; return c*(t/=d)*t*((s+1)*t - s) + b; }, backout: function(x, t, b, c, d) { var s=1.70158; return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b; }, backinout: function(x, t, b, c, d) { var 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; } });