What willthe following JavaScript code do when it runs?

<SCRIPT Language="JavaScript">

<!--

var d=new Date;

var h=d.getHours();

var msg="";

var targ;

if(h<12)

msg="<h1>Good Morning!</h1>";

else if(h>=12 && h<18)

msg="<h1>Good Afternoon!</h1>";

else

msg="<h1>Good Evening!<h1>";

document.write(msg);

/-->

</SCRIPT>