Added fixes for bug #1052. Fixes the problems with animation chaining (and problems...
[jquery.git] / src / fx / fx.js
index 1a077f0..ceeb6d1 100644 (file)
@@ -1,7 +1,16 @@
 jQuery.fn.extend({
 
-       // overwrite the old show method
-       _show: jQuery.fn.show,
+       /**
+        * Displays each of the set of matched elements if they are hidden.
+        *
+        * @example $("p").show()
+        * @before <p style="display: none">Hello</p>
+        * @result [ <p style="display: block">Hello</p> ]
+        *
+        * @name show
+        * @type jQuery
+        * @cat Effects
+        */
        
        /**
         * Show all matched elements using a graceful animation and firing an
@@ -20,18 +29,33 @@ jQuery.fn.extend({
         * @type jQuery
         * @param String|Number speed A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see hide(String|Number,Function)
         */
-       show: function(speed,callback, transition){
-               return speed ? this.animate({
-                       height: "show", width: "show", opacity: "show"
-               }, speed, callback, transition) : this._show();
+       show: function(speed,callback){
+               return speed ?
+                       this.animate({
+                               height: "show", width: "show", opacity: "show"
+                       }, speed, callback) :
+                       
+                       this.filter(":hidden").each(function(){
+                               this.style.display = this.oldblock ? this.oldblock : "";
+                               if ( jQuery.css(this,"display") == "none" )
+                                       this.style.display = "block";
+                       }).end();
        },
        
-       // Overwrite the old hide method
-       _hide: jQuery.fn.hide,
+       /**
+        * Hides each of the set of matched elements if they are shown.
+        *
+        * @example $("p").hide()
+        * @before <p>Hello</p>
+        * @result [ <p style="display: none">Hello</p> ]
+        *
+        * @name hide
+        * @type jQuery
+        * @cat Effects
+        */
        
        /**
         * Hide all matched elements using a graceful animation and firing an
@@ -50,14 +74,45 @@ jQuery.fn.extend({
         * @type jQuery
         * @param String|Number speed A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see show(String|Number,Function)
         */
-       hide: function(speed,callback, transition){
-               return speed ? this.animate({
-                       height: "hide", width: "hide", opacity: "hide"
-               }, speed, callback, transition) : this._hide();
+       hide: function(speed,callback){
+               return speed ?
+                       this.animate({
+                               height: "hide", width: "hide", opacity: "hide"
+                       }, speed, callback) :
+                       
+                       this.filter(":visible").each(function(){
+                               this.oldblock = this.oldblock || jQuery.css(this,"display");
+                               if ( this.oldblock == "none" )
+                                       this.oldblock = "block";
+                               this.style.display = "none";
+                       }).end();
+       },
+
+       // Save the old toggle function
+       _toggle: jQuery.fn.toggle,
+       
+       /**
+        * Toggles each of the set of matched elements. If they are shown,
+        * toggle makes them hidden. If they are hidden, toggle
+        * makes them shown.
+        *
+        * @example $("p").toggle()
+        * @before <p>Hello</p><p style="display: none">Hello Again</p>
+        * @result [ <p style="display: none">Hello</p>, <p style="display: block">Hello Again</p> ]
+        *
+        * @name toggle
+        * @type jQuery
+        * @cat Effects
+        */
+       toggle: function( fn, fn2 ){
+               return jQuery.isFunction(fn) && jQuery.isFunction(fn2) ?
+                       this._toggle( fn, fn2 ) :
+                       this.animate({
+                               height: "toggle", width: "toggle", opacity: "toggle"
+                       }, fn, fn2);
        },
        
        /**
@@ -77,13 +132,12 @@ jQuery.fn.extend({
         * @type jQuery
         * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see slideUp(String|Number,Function)
         * @see slideToggle(String|Number,Function)
         */
-       slideDown: function(speed,callback, transition){
-               return this.animate({height: "show"}, speed, callback, transition);
+       slideDown: function(speed,callback){
+               return this.animate({height: "show"}, speed, callback);
        },
        
        /**
@@ -103,13 +157,12 @@ jQuery.fn.extend({
         * @type jQuery
         * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see slideDown(String|Number,Function)
         * @see slideToggle(String|Number,Function)
         */
-       slideUp: function(speed,callback, transition){
-               return this.animate({height: "hide"}, speed, callback, transition);
+       slideUp: function(speed,callback){
+               return this.animate({height: "hide"}, speed, callback);
        },
 
        /**
@@ -129,16 +182,12 @@ jQuery.fn.extend({
         * @type jQuery
         * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see slideDown(String|Number,Function)
         * @see slideUp(String|Number,Function)
         */
-       slideToggle: function(speed, callback, transition){
-               return this.each(function(){
-                       var state = jQuery(this).is(":hidden") ? "show" : "hide";
-                       jQuery(this).animate({height: state}, speed, callback, transition);
-               });
+       slideToggle: function(speed, callback){
+               return this.animate({height: "toggle"}, speed, callback);
        },
        
        /**
@@ -159,13 +208,12 @@ jQuery.fn.extend({
         * @type jQuery
         * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see fadeOut(String|Number,Function)
         * @see fadeTo(String|Number,Number,Function)
         */
-       fadeIn: function(speed, callback, transition){
-               return this.animate({opacity: "show"}, speed, callback, transition);
+       fadeIn: function(speed, callback){
+               return this.animate({opacity: "show"}, speed, callback);
        },
        
        /**
@@ -186,13 +234,12 @@ jQuery.fn.extend({
         * @type jQuery
         * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see fadeIn(String|Number,Function)
         * @see fadeTo(String|Number,Number,Function)
         */
-       fadeOut: function(speed, callback, transition){
-               return this.animate({opacity: "hide"}, speed, callback, transition);
+       fadeOut: function(speed, callback){
+               return this.animate({opacity: "hide"}, speed, callback);
        },
        
        /**
@@ -214,25 +261,27 @@ jQuery.fn.extend({
         * @param String|Number speed A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
         * @param Number opacity The opacity to fade to (a number from 0 to 1).
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         * @see fadeIn(String|Number,Function)
         * @see fadeOut(String|Number,Function)
         */
-       fadeTo: function(speed,to,callback, transition){
-               return this.animate({opacity: to}, speed, callback, transition);
+       fadeTo: function(speed,to,callback){
+               return this.animate({opacity: to}, speed, callback);
        },
        
        /**
-        * A function for making your own, custom, animations. The key aspect of
+        * A function for making your own, custom animations. The key aspect of
         * this function is the object of style properties that will be animated,
         * and to what end. Each key within the object represents a style property
         * that will also be animated (for example: "height", "top", or "opacity").
         *
+        * Note that properties should be specified using camel case
+        * eg. marginLeft instead of margin-left.
+        *
         * The value associated with the key represents to what end the property
         * will be animated. If a number is provided as the value, then the style
         * property will be transitioned from its current state to that new number.
-        * Oterwise if the string "hide", "show", or "toggle" is provided, a default
+        * Otherwise if the string "hide", "show", or "toggle" is provided, a default
         * animation will be constructed for that property.
         *
         * @example $("p").animate({
@@ -243,27 +292,39 @@ jQuery.fn.extend({
         *   left: 50, opacity: 'show'
         * }, 500);
         *
+        * @example $("p").animate({
+        *   opacity: 'show'
+        * }, "slow", "easein");
+        * @desc An example of using an 'easing' function to provide a different style of animation. This will only work if you have a plugin that provides this easing function (Only 'linear' is provided by default, with jQuery).
+        *
         * @name animate
         * @type jQuery
         * @param Hash params A set of style attributes that you wish to animate, and to what end.
         * @param String|Number speed (optional) A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
+        * @param String easing (optional) The name of the easing effect that you want to use (e.g. swing or linear). Defaults to "swing".
         * @param Function callback (optional) A function to be executed whenever the animation completes.
-        * @param String transition (optional) Transition effect
-        * @cat Effects/Animations
+        * @cat Effects
         */
-       animate: function(prop,speed,callback, transition) {
+       animate: function( prop, speed, easing, callback ) {
                return this.queue(function(){
+                       var hidden = jQuery(this).is(":hidden");
+                       
+                       for ( var p in prop )
+                               if ( prop[p] == "hide" && hidden ||
+                                       prop[p] == "show" && !hidden )
+                                               return;
                
                        this.curAnim = jQuery.extend({}, prop);
+                       var opt = jQuery.speed(speed, easing, callback);
+                       var self = this;
                        
-                       for ( var p in prop ) {
-                               var e = new jQuery.fx( this, jQuery.speed(speed,callback), p, transition );
-                               if ( prop[p].constructor == Number )
-                                       e.custom( e.cur(), prop[p] );
+                       jQuery.each( prop, function(name, val){
+                               var e = new jQuery.fx( self, opt, name );
+                               if ( val.constructor == Number )
+                                       e.custom( e.cur(), val );
                                else
-                                       e[ prop[p] ]( prop );
-                       }
-                       
+                                       e[ val == "toggle" ? hidden ? "show" : "hide" : val ]( prop );
+                       });
                });
        },
        
@@ -295,24 +356,36 @@ jQuery.fn.extend({
 
 jQuery.extend({
        
-       speed: function(s,o) {
-               o = o || {};
-               
-               if ( o.constructor == Function )
-                       o = { complete: o };
-               
-               var ss = { slow: 600, fast: 200 };
-               o.duration = (s && s.constructor == Number ? s : ss[s]) || 400;
+       speed: function(speed, easing, fn) {
+               var opt = speed && speed.constructor == Object ? speed : {
+                       complete: fn || !fn && easing || 
+                               jQuery.isFunction( speed ) && speed,
+                       duration: speed,
+                       easing: fn && easing || easing && easing.constructor != Function && easing || "swing"
+               };
+
+               opt.duration = (opt.duration && opt.duration.constructor == Number ? 
+                       opt.duration : 
+                       { slow: 600, fast: 200 }[opt.duration]) || 400;
        
                // Queueing
-               o.oldComplete = o.complete;
-               o.complete = function(){
+               opt.old = opt.complete;
+               opt.complete = function(){
                        jQuery.dequeue(this, "fx");
-                       if ( o.oldComplete && o.oldComplete.constructor == Function )
-                               o.oldComplete.apply( this );
+                       if ( jQuery.isFunction( opt.old ) )
+                               opt.old.apply( this );
                };
        
-               return o;
+               return opt;
+       },
+       
+       easing: {
+               linear: function( p, n, firstNum, diff ) {
+                       return firstNum + diff * p;
+               },
+               swing: function( p, n, firstNum, diff ) {
+                       return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;
+               }
        },
        
        queue: {},
@@ -331,36 +404,29 @@ jQuery.extend({
                }
        },
 
+       timers: [],
+
        /*
         * I originally wrote fx() as a clone of moo.fx and in the process
         * of making it small in size the code became illegible to sane
         * people. You've been warned.
         */
        
-       fx: function( elem, options, prop, transition ){
+       fx: function( elem, options, prop ){
 
                var z = this;
 
-               // The users options
-               z.o = {
-                       duration: options.duration || 400,
-                       complete: options.complete,
-                       step: options.step,
-                       transition : /easein|easeout|easeboth|bouncein|bounceout|bounceboth|elasticin|elasticout|elasticboth/.test(transition) ? transition : 'original'
-               };
-               
-               // The element
-               z.el = elem;
-
                // The styles
-               var y = z.el.style;
+               var y = elem.style;
                
-               // Store display property
-               var oldDisplay = jQuery.css(z.el, 'display');
-               // Set display property to block for animation
-               y.display = "block";
-               // Make sure that nothing sneaks out
-               y.overflow = "hidden";
+               if ( prop == "height" || prop == "width" ) {
+                       // Store display property
+                       var oldDisplay = jQuery.css(elem, "display");
+
+                       // Make sure that nothing sneaks out
+                       var oldOverflow = y.overflow;
+                       y.overflow = "hidden";
+               }
 
                // Simple function for setting a style value
                z.a = function(){
@@ -369,18 +435,20 @@ jQuery.extend({
 
                        if ( prop == "opacity" )
                                jQuery.attr(y, "opacity", z.now); // Let attr handle opacity
-                       else if ( parseInt(z.now) ) // My hate for IE will never die
+                       else {
                                y[prop] = parseInt(z.now) + "px";
+                               y.display = "block"; // Set display property to block for animation
+                       }
                };
 
                // Figure out the maximum number to run to
                z.max = function(){
-                       return parseFloat( jQuery.css(z.el,prop) );
+                       return parseFloat( jQuery.css(elem,prop) );
                };
 
                // Get the current size
                z.cur = function(){
-                       var r = parseFloat( jQuery.curCSS(z.el, prop) );
+                       var r = parseFloat( jQuery.curCSS(elem, prop) );
                        return r && r > -10000 ? r : z.max();
                };
 
@@ -390,211 +458,114 @@ jQuery.extend({
                        z.now = from;
                        z.a();
 
-                       z.timer = setInterval(function(){
-                               z.step(from, to);
-                       }, 13);
+                       jQuery.timers.push(function(){
+                               return z.step(from, to);
+                       });
+
+                       if ( jQuery.timers.length == 1 ) {
+                               var timer = setInterval(function(){
+                                       var timers = jQuery.timers;
+                                       
+                                       for ( var i = 0; i < timers.length; i++ )
+                                               if ( !timers[i]() )
+                                                       timers.splice(i--, 1);
+
+                                       if ( !timers.length )
+                                               clearInterval( timer );
+                               }, 13);
+                       }
                };
 
                // Simple 'show' function
                z.show = function(){
-                       if ( !z.el.orig ) z.el.orig = {};
+                       if ( !elem.orig ) elem.orig = {};
 
                        // Remember where we started, so that we can go back to it later
-                       z.el.orig[prop] = this.cur();
+                       elem.orig[prop] = jQuery.attr( elem.style, prop );
 
-                       z.o.show = true;
+                       options.show = true;
 
                        // Begin the animation
-                       z.custom(0, z.el.orig[prop]);
+                       z.custom(0, this.cur());
 
-                       // Stupid IE, look what you made me do
+                       // Make sure that we start at a small width/height to avoid any
+                       // flash of content
                        if ( prop != "opacity" )
                                y[prop] = "1px";
+                       
+                       // Start by showing the element
+                       jQuery(elem).show();
                };
 
                // Simple 'hide' function
                z.hide = function(){
-                       if ( !z.el.orig ) z.el.orig = {};
+                       if ( !elem.orig ) elem.orig = {};
 
                        // Remember where we started, so that we can go back to it later
-                       z.el.orig[prop] = this.cur();
+                       elem.orig[prop] = jQuery.attr( elem.style, prop );
 
-                       z.o.hide = true;
+                       options.hide = true;
 
                        // Begin the animation
-                       z.custom(z.el.orig[prop], 0);
-               };
-               
-               //Simple 'toggle' function
-               z.toggle = function() {
-                       if ( !z.el.orig ) z.el.orig = {};
-
-                       // Remember where we started, so that we can go back to it later
-                       z.el.orig[prop] = this.cur();
-
-                       if(oldDisplay == 'none')  {
-                               z.o.show = true;
-                               
-                               // Stupid IE, look what you made me do
-                               if ( prop != "opacity" )
-                                       y[prop] = "1px";
-
-                               // Begin the animation
-                               z.custom(0, z.el.orig[prop]);   
-                       } else {
-                               z.o.hide = true;
-
-                               // Begin the animation
-                               z.custom(z.el.orig[prop], 0);
-                       }               
+                       z.custom(this.cur(), 0);
                };
 
                // Each step of an animation
                z.step = function(firstNum, lastNum){
                        var t = (new Date()).getTime();
 
-                       if (t > z.o.duration + z.startTime) {
-                               // Stop the timer
-                               clearInterval(z.timer);
-                               z.timer = null;
-
+                       if (t > options.duration + z.startTime) {
                                z.now = lastNum;
                                z.a();
 
-                               if (z.el.curAnim) z.el.curAnim[ prop ] = true;
+                               if (elem.curAnim) elem.curAnim[ prop ] = true;
 
                                var done = true;
-                               for ( var i in z.el.curAnim )
-                                       if ( z.el.curAnim[i] !== true )
+                               for ( var i in elem.curAnim )
+                                       if ( elem.curAnim[i] !== true )
                                                done = false;
 
                                if ( done ) {
-                                       // Reset the overflow
-                                       y.overflow = '';
+                                       if ( oldDisplay != null ) {
+                                               // Reset the overflow
+                                               y.overflow = oldOverflow;
                                        
-                                       // Reset the display
-                                       y.display = oldDisplay;
-                                       if (jQuery.css(z.el, 'display') == 'none')
-                                               y.display = 'block';
+                                               // Reset the display
+                                               y.display = oldDisplay;
+                                               if ( jQuery.css(elem, "display") == "none" )
+                                                       y.display = "block";
+                                       }
 
                                        // Hide the element if the "hide" operation was done
-                                       if ( z.o.hide ) 
-                                               y.display = 'none';
+                                       if ( options.hide )
+                                               y.display = "none";
 
                                        // Reset the properties, if the item has been hidden or shown
-                                       if ( z.o.hide || z.o.show )
-                                               for ( var p in z.el.curAnim )
-                                                       if (p == "opacity")
-                                                               jQuery.attr(y, p, z.el.orig[p]);
-                                                       else
-                                                               y[p] = '';
+                                       if ( options.hide || options.show )
+                                               for ( var p in elem.curAnim )
+                                                       jQuery.attr(y, p, elem.orig[p]);
                                }
 
                                // If a callback was provided, execute it
-                               if( done && z.o.complete && z.o.complete.constructor == Function )
+                               if ( done && jQuery.isFunction( options.complete ) )
                                        // Execute the complete function
-                                       z.o.complete.apply( z.el );
+                                       options.complete.apply( elem );
+
+                               return false;
                        } else {
                                var n = t - this.startTime;
                                // Figure out where in the animation we are and set the number
-                               var p = n / z.o.duration;
-                               //z.now = ((-Math.cos(p*Math.PI)/2) + 0.5) * (lastNum-firstNum) + firstNum;
-                               z.now = jQuery.transitions(p, n,  firstNum, (lastNum-firstNum), z.o.duration, z.o.transition);
+                               var p = n / options.duration;
+                               
+                               // Perform the easing function, defaults to swing
+                               z.now = jQuery.easing[options.easing](p, n,  firstNum, (lastNum-firstNum), options.duration);
 
                                // Perform the next step of the animation
                                z.a();
                        }
+
+                       return true;
                };
        
-       },
-       
-       transitions :  function(p, n, firstNum, delta, duration, type) {
-               var nm, m, a, s;
-               if (type == 'original') {
-                       return ((-Math.cos(p*Math.PI)/2) + 0.5) * delta + firstNum;
-               }
-               if (type == 'easein') {
-                       return delta*(n/=duration)*n*n + firstNum;
-               }
-               if (type == 'easeout') {
-                       return -delta * ((n=n/duration-1)*n*n*n - 1) + firstNum;
-               }
-               if (type == 'easeboth') {
-                       if ((n/=duration/2) < 1)
-                               return delta/2*n*n*n*n + firstNum;
-                               return -delta/2 * ((n-=2)*n*n*n - 2) + firstNum;
-               }
-               if (type == 'easeboth') {
-                       if ((n/=duration/2) < 1)
-                               return delta/2*n*n*n*n + firstNum;
-                       return -delta/2 * ((n-=2)*n*n*n - 2) + firstNum;
-               }
-               if (type == 'bounceout') {
-                       if ((n/=duration) < (1/2.75)) {
-                               return delta*(7.5625*n*n) + firstNum;
-                       } else if (n < (2/2.75)) {
-                               return delta*(7.5625*(n-=(1.5/2.75))*n + .75) + firstNum;
-                       } else if (n < (2.5/2.75)) {
-                               return delta*(7.5625*(n-=(2.25/2.75))*n + .9375) + firstNum;
-                       } else {
-                               return delta*(7.5625*(n-=(2.625/2.75))*n + .984375) + firstNum;
-                       }
-               }
-               if (type == 'bouncein') {
-                       return delta - jQuery.transitions (p, duration - n, 0, delta, duration, 'bounceout') + firstNum; 
-               }
-               if (type == 'bounceboth') {
-                  if (n < duration/2) return jQuery.transitions(p, n*2, 0, delta, duration, 'bouncein') * .5 + firstNum;
-                  return jQuery.transitions(p, n*2-duration, 0, delta, duration, 'bounceout') * .5 + delta*.5 + firstNum; 
-               }
-               if (type == 'elasticin') {
-                       if (n == 0)
-                               return firstNum;
-                       if ((n/=duration)==1)
-                               return firstNum+delta;
-                       a = delta * 0.3;
-                       p=duration*.3;
-                       if (a < Math.abs(delta)) {
-                               a=delta;
-                               s=p/4;
-                       } else { 
-                               s = p/(2*Math.PI) * Math.asin (delta/a);
-                       }
-                       return -(a*Math.pow(2,10*(n-=1)) * Math.sin( (n*duration-s)*(2*Math.PI)/p )) + firstNum; 
-               }
-               if (type == 'elasticout') {
-                       if (n==0)
-                               return firstNum;
-                       if ((n/=duration/2)==2)
-                               return firstNum + delta;
-                       a = delta * 0.3;
-                       p=duration*.3;
-                       if (a < Math.abs(delta)){
-                               a = delta;
-                               s=p/4;
-                       } else { 
-                               s = p/(2*Math.PI) * Math.asin (delta/a);
-                       }
-                       return a*Math.pow(2,-10*n) * Math.sin( (n*duration-s)*(2*Math.PI)/p ) + delta + firstNum;
-               }
-               if (type == 'elasticboth') {
-                       if (n==0)
-                               return firstNum;
-                       if ((n/=duration/2)==2)
-                               return firstNum + delta;
-                       a = delta * 0.3;
-                       p=duration*.3;
-                       if (a < Math.abs(delta)){
-                               a = delta;
-                               s=p/4;
-                       } else { 
-                               s = p/(2*Math.PI) * Math.asin (delta/a);
-                       }
-                       if (n < 1) {
-                               return -.5*(a*Math.pow(2,10*(n-=1)) * Math.sin( (n*duration-s)*(2*Math.PI)/p )) + firstNum;
-                       }
-                       return a*Math.pow(2,-10*(n-=1)) * Math.sin( (n*duration-s)*(2*Math.PI)/p )*.5 + delta + firstNum; 
-               }
        }
-
 });