Uses web workers when available

[rmhrisk]

Web workers use separate threads of execution to perform work in parallel with the main thread.

We can detect if web workers are supported and degrade if it is not:

if( window.Worker /*check for support*/ )
    someObject.myFunction = function() { /*algorithm that uses Web Workers*/ }
else
    someObject.myFunction = function() { /* sad face */ }

Web workers are instantiated by calling:

new Worker(pathToJavaScriptFile);

Here is a useful post on this topic: http://codecube.net/2009/07/cross-platform-javascript-webworker/