enpaul.net/content/_archive/5.5/js/jquery.easing.min.js

/*
 * jQuery Easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/
 *
 * Uses the built in easing capabilities added In jQuery 1.1
 * to offer multiple easing options
 *
 * TERMS OF USE - EASING EQUATIONS
 * 
 * Open source under the BSD License. 
 * 
 * Copyright © 2001 Robert Penner
 * All rights reserved.
 *
 * TERMS OF USE - jQuery Easing
 * 
 * Open source under the BSD License. 
 * 
 * Copyright © 2008 George McGinley Smith
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list of 
 * conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this list 
 * of conditions and the following disclaimer in the documentation and/or other materials 
 * provided with the distribution.
 * 
 * Neither the name of the author nor the names of contributors may be used to endorse 
 * or promote products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 *  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
 * OF THE POSSIBILITY OF SUCH DAMAGE. 
 *
*/
jQuery.easing.jswing=jQuery.easing.swing;jQuery.extend(jQuery.easing,{def:"easeOutQuad",swing:function(e,f,a,h,g){return jQuery.easing[jQuery.easing.def](e,f,a,h,g)},easeInQuad:function(e,f,a,h,g){return h*(f/=g)*f+a},easeOutQuad:function(e,f,a,h,g){return -h*(f/=g)*(f-2)+a},easeInOutQuad:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f+a}return -h/2*((--f)*(f-2)-1)+a},easeInCubic:function(e,f,a,h,g){return h*(f/=g)*f*f+a},easeOutCubic:function(e,f,a,h,g){return h*((f=f/g-1)*f*f+1)+a},easeInOutCubic:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f*f+a}return h/2*((f-=2)*f*f+2)+a},easeInQuart:function(e,f,a,h,g){return h*(f/=g)*f*f*f+a},easeOutQuart:function(e,f,a,h,g){return -h*((f=f/g-1)*f*f*f-1)+a},easeInOutQuart:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f*f*f+a}return -h/2*((f-=2)*f*f*f-2)+a},easeInQuint:function(e,f,a,h,g){return h*(f/=g)*f*f*f*f+a},easeOutQuint:function(e,f,a,h,g){return h*((f=f/g-1)*f*f*f*f+1)+a},easeInOutQuint:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f*f*f*f+a}return h/2*((f-=2)*f*f*f*f+2)+a},easeInSine:function(e,f,a,h,g){return -h*Math.cos(f/g*(Math.PI/2))+h+a},easeOutSine:function(e,f,a,h,g){return h*Math.sin(f/g*(Math.PI/2))+a},easeInOutSine:function(e,f,a,h,g){return -h/2*(Math.cos(Math.PI*f/g)-1)+a},easeInExpo:function(e,f,a,h,g){return(f==0)?a:h*Math.pow(2,10*(f/g-1))+a},easeOutExpo:function(e,f,a,h,g){return(f==g)?a+h:h*(-Math.pow(2,-10*f/g)+1)+a},easeInOutExpo:function(e,f,a,h,g){if(f==0){return a}if(f==g){return a+h}if((f/=g/2)<1){return h/2*Math.pow(2,10*(f-1))+a}return h/2*(-Math.pow(2,-10*--f)+2)+a},easeInCirc:function(e,f,a,h,g){return -h*(Math.sqrt(1-(f/=g)*f)-1)+a},easeOutCirc:function(e,f,a,h,g){return h*Math.sqrt(1-(f=f/g-1)*f)+a},easeInOutCirc:function(e,f,a,h,g){if((f/=g/2)<1){return -h/2*(Math.sqrt(1-f*f)-1)+a}return h/2*(Math.sqrt(1-(f-=2)*f)+1)+a},easeInElastic:function(f,h,e,l,k){var i=1.70158;var j=0;var g=l;if(h==0){return e}if((h/=k)==1){return e+l}if(!j){j=k*0.3}if(g<Math.abs(l)){g=l;var i=j/4}else{var i=j/(2*Math.PI)*Math.asin(l/g)}return -(g*Math.pow(2,10*(h-=1))*Math.sin((h*k-i)*(2*Math.PI)/j))+e},easeOutElastic:function(f,h,e,l,k){var i=1.70158;var j=0;var g=l;if(h==0){return e}if((h/=k)==1){return e+l}if(!j){j=k*0.3}if(g<Math.abs(l)){g=l;var i=j/4}else{var i=j/(2*Math.PI)*Math.asin(l/g)}return g*Math.pow(2,-10*h)*Math.sin((h*k-i)*(2*Math.PI)/j)+l+e},easeInOutElastic:function(f,h,e,l,k){var i=1.70158;var j=0;var g=l;if(h==0){return e}if((h/=k/2)==2){return e+l}if(!j){j=k*(0.3*1.5)}if(g<Math.abs(l)){g=l;var i=j/4}else{var i=j/(2*Math.PI)*Math.asin(l/g)}if(h<1){return -0.5*(g*Math.pow(2,10*(h-=1))*Math.sin((h*k-i)*(2*Math.PI)/j))+e}return g*Math.pow(2,-10*(h-=1))*Math.sin((h*k-i)*(2*Math.PI)/j)*0.5+l+e},easeInBack:function(e,f,a,i,h,g){if(g==undefined){g=1.70158}return i*(f/=h)*f*((g+1)*f-g)+a},easeOutBack:function(e,f,a,i,h,g){if(g==undefined){g=1.70158}return i*((f=f/h-1)*f*((g+1)*f+g)+1)+a},easeInOutBack:function(e,f,a,i,h,g){if(g==undefined){g=1.70158}if((f/=h/2)<1){return i/2*(f*f*(((g*=(1.525))+1)*f-g))+a}return i/2*((f-=2)*f*(((g*=(1.525))+1)*f+g)+2)+a},easeInBounce:function(e,f,a,h,g){return h-jQuery.easing.easeOutBounce(e,g-f,0,h,g)+a},easeOutBounce:function(e,f,a,h,g){if((f/=g)<(1/2.75)){return h*(7.5625*f*f)+a}else{if(f<(2/2.75)){return h*(7.5625*(f-=(1.5/2.75))*f+0.75)+a}else{if(f<(2.5/2.75)){return h*(7.5625*(f-=(2.25/2.75))*f+0.9375)+a}else{return h*(7.5625*(f-=(2.625/2.75))*f+0.984375)+a}}}},easeInOutBounce:function(e,f,a,h,g){if(f<g/2){return jQuery.easing.easeInBounce(e,f*2,0,h,g)*0.5+a}return jQuery.easing.easeOutBounce(e,f*2-g,0,h,g)*0.5+h*0.5+a}});