function guestbook(id)
{
	if(
		(
			id == "titleinput" &&
			(
				document.getElementById(id).value == "Titel"
				||
				document.getElementById(id).value == "Title"
			)
		)
		||
		(
			id == "entryinput" &&
			(
				document.getElementById(id).value == "Fügen Sie Ihre Nachricht hier ein..."
				||
				document.getElementById(id).value == "Please fill in your message here..."
			)
		)
		||
		(
			id == "nameinput" &&
			(
				document.getElementById(id).value == "Ihr Name"
				||
				document.getElementById(id).value == "Your Name"
			)
		)
	)
	{ document.getElementById(id).value = ""; }
}