This is an example of dynamically loading SoundManager 2 using JS, after window.onload() has fired.
This page waits until window.onload(), delays 1 second and loads soundmanager2.js, which should then start up.
SoundManager 2 status: Window loaded, waiting 1 second...
/* * Dynamic script loading helper * Normalizes good browser onload() vs. IE readyState weirdness */ function loadScript(sURL, onLoad) { function loadScriptHandler() { var rs = this.readyState; if (rs == 'loaded' || rs == 'complete') { this.onreadystatechange = null; this.onload = null; if (onLoad) { onLoad(); } } } function scriptOnload() { this.onreadystatechange = null; this.onload = null; window.setTimeout(onLoad,20); } var oS = document.createElement('script'); oS.type = 'text/javascript'; if (onLoad) { oS.onreadystatechange = loadScriptHandler; oS.onload = scriptOnload; } oS.src = sURL; document.getElementsByTagName('head')[0].appendChild(oS); } // Wait for window load, then load soundmanager2.js, let it start and play a test sound window.onload = function() { msg('Window loaded, waiting 1 second...'); setTimeout(function() { msg('Loading soundmanager2.js...'); loadScript('../../script/soundmanager2.js', function() { // SM2 script has loaded soundManager.url = '../../swf/'; soundManager.onready(function() { soundManager.createSound({ id:'foo', url:'../_mp3/mouseover.mp3' }).play(); msg('started OK'); }); soundManager.ontimeout(function() { msg('Loaded OK, but unable to start: unsupported/flash blocked, etc.'); }); soundManager.beginDelayedInit(); // ensure start-up in case document.readyState and/or DOMContentLoaded are unavailable }); },1000); }
It's good to let users see the flash component of SM2, so those with flash blockers can unblock it and allow SM2 to start. For more info on this, see the Flashblock example.
If you prefer to have the library wait for window.onload() before calling soundManager.onload()/onerror() methods, you can modify SM2's "waitForWindowLoad" property:
soundManager.waitForWindowLoad = true;
If you want to completely defer the normal start-up of SM2 and call the SoundManager() constructor yourself, you can declare an SM2_DEFER global and set it to true. See the SM2_DEFER example for details.
SoundManager 2 will write to a debug <div> element or a javascript console if available, by default. To disable it, simply set the relevant property to false:
soundManager.debugMode = false;
To see related configuration code, refer to the source of this page which basically does all of the above "for real."
If SM2 is failing to start and throwing errors due to flash security, timeouts or other issues, check out the troubleshooting tool which can help you fix things.
Once development is finished, you can also use the "minified" (60% smaller) version of SM2, which has debug output and comments removed for you: soundmanager2-nodebug-jsmin.js. If you can, serve this with gzip compression for even greater bandwidth savings!