function whois() {
	var txtDomain = $('input#domain').val();
	$('div#result').load('http://www.totalwhois.org/whois/'+ txtDomain);
};

$("document").ready( function() {
	$('button#btnLookup').click(function() { whois(); });
	$("input#domain").keyup(function (e) {
		if (e.keyCode == 13) { whois(); }
	})
});