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scottjehl/head.html

Created February 20, 2013 17:18
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simple & qualified async script load
Raw
head.html
<head>
....
</head>
<script>
(function( w ){
var doc = w.document,
// quick async script inject
ref = doc.getElementsByTagName( "script" )[0],
loadJS = function( src ){
var elem = doc.createElement( "script" );
elem.src = src;
ref.parentNode.insertBefore(elem, ref);
};
// load a script
loadJS( "foo.js" );
// or broadly qualify to newer browsers first:
if( "querySelector" in doc ){
loadJS( "foo.js" );
}
}( this ));
</script>
...
</head>
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