Include .js files inside a .js file - Javascript

javascript code

function include(file)
{
  var script  = document.createElement('script');
  script.src  = file;
  script.type = 'text/javascript';
  script.defer = true;
  document.getElementsByTagName('head').item(0).appendChild(script);
}
if(Browser.Engine.trident4){
include('js/pngfix.js');
}

* The best solution for your browser load time would be to use a server side script to join them all together into one big .js file.