The script element enables dynamic script and data blocks to be included in documents.
|async||async | empty||Specifies that the script should be executed asynchronously, as soon as it becomes available - HTML5|
|charset||character encoding name||Character encoding of the external script|
|defer||defer | empty||Specifies that script should be executed after the document has been parsed|
|src||URI||URL for the audio stream|
W3C HTML 4.01 Specification
W3C HTML 5.1