How to insert a string in an empty font tag?
<p>how can I add a string in an empty font tag? Like if in the second font tag there is no value, I will just insert a <code>&lt;br /&gt;</code> tag. How can I do that?</p>

<p>I have this HTML code:</p>

<pre><code>&lt;P ALIGN="LEFT"&gt;
    &lt;FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0"&gt;
        Welcome to jQuery Course
    &lt;/FONT&gt;
&lt;/P&gt;
&lt;P ALIGN="LEFT"&gt;
    &lt;FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0"&gt;
    &lt;/FONT&gt;
&lt;/P&gt;
&lt;P ALIGN="LEFT"&gt;
    &lt;FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0"&gt;
        This is the jQuery Introduction content.
    &lt;/FONT&gt;
&lt;/P&gt;
</code></pre>

<p>And I like the output to be:</p>

<pre><code>&lt;P ALIGN="LEFT"&gt;
        &lt;FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0"&gt;
            Welcome to jQuery Course
        &lt;/FONT&gt;
    &lt;/P&gt;
    &lt;P ALIGN="LEFT"&gt;
        &lt;FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0"&gt;
            &lt;br /&gt;
        &lt;/FONT&gt;
    &lt;/P&gt;
    &lt;P ALIGN="LEFT"&gt;
        &lt;FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0"&gt;
            This is the jQuery Introduction content.
        &lt;/FONT&gt;
    &lt;/P&gt;
</code></pre>
