Javascript Loading Test - #2

Loading Javascript file by using document.write() -- The orginal article is Javascript Async Loading

The Javascript file is alert.js

The test code as below:

<script language="javascript" type="text/javascript">
    function loadjs(script_filename) {
        document.write('<' + 'script language="javascript" type="text/javascript"');
        document.write(' src="' + script_filename + '">');
        document.write('<'+'/script'+'>');
        alert("loadjs() exit...");
    }

    var script = './alert.js';
    loadjs(script);
    alert("loadjs() finished!");
</script>

<script language="javascript" type="text/javascript">
    alert("another block");
</script>