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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head>	<title>Untitled</title>	<script type="text/javascript">	function checkWholeForm( ) {	    var why = "";    	why += checkUsername("stuff");	    if (why != "") {	       alert(why);    	   return false;	    }			return true;	}		function checkUsername(strng) {		 var error = "";		 if (strng == "") {		    error = "You didn't enter a username.\n";		 }		 return error;	}	</script></head><body>	<a href="http://www.sun.com" onclick="return checkWholeForm( );">stuff</a></body></html>