This text is plain.

The output above was produced by the code below:

<SCRIPT>

// navigator Object provides use information about the browser in
// navigator.appName => The name of the browser
// navigator.appVersion => Version information for the browser
// navigator.userAgent =>
// The string passed by the browser as the user-agent header in HTTP requests
document.write(navigator.appName + "<BR>");
document.write(navigator.appVersion + "<BR>");
document.write(navigator.userAgent + "<BR>");

// The variable example is equal to "An Example"
var example = "An Example";

// The variable example is converted by document.write to "An Example"
// & concatenated with the string " of how to use concatenation <BR>"
// which also contains embedded HTML
document.write("<BR>" + example + " of how to use concatenation <BR>");

// instead of using + to concatenate, we can use the same procedure by using commas (,)
// NOTE also \'' which means do not treat this quotation mark as opening or closing quotation
// for document.write, but rather as a literal to be printed out to the page.
document.write("<BR>", example, " of another way to use \"concatenation\"", "<BR>");

// -- OR --

// document.write('<BR>', example, ' of another way to use "concatenation"', '<BR>');

</SCRIPT>

<BODY>

This text is plain.<BR>
<B>

<SCRIPT>

document.write("This text is bold.</B>");

</SCRIPT>