javascript load code from url code example
Example 1: javascript dynamicly include another js file
var script = document.createElement('script');
script.src = "https://www.examplesite/myscript.js";
document.head.appendChild(script);
Example 2: include other js files in a js file
document.writeln("<script type='text/javascript' src='Script1.js'></script>");
document.writeln("<script type='text/javascript' src='Script2.js'></script>");
Example 3: how to call a script from another script in javascript
<script type="text/javascript" src="file1.js"></script>
<script type="text/javascript" src="file2.js"></script>
<script type="text/javascript">
alertOne( );
</script>