Javascript help

[HPIA]

Hey!

I want to make a little code that allows a little message to come up in the breadcrumb to display good morning, good afternoon, and good evening.

I have the code:

<script type="text/javascript">
var d = new Date()
var time = d.getHours()
if (time<10)
{
document.write("<b>Good morning,</b>")
}
else if (time>10 && time<16)
{
document.write("<b>Good afternoon,</b>")
}
else
{
document.write("<b>Good evening,</b>")
}
</script>

But I don't know how to incorporate $username into the javascript so it would say like "Good Afternoon, HPIA" instead of "Welcome, HPIA". Does anyone know what I mean?