function commentcheck()
{
if(document.getElementById("comment").value != ''){
	document.getElementById("commentpreview").style.display = "block";
	document.getElementById("message").innerHTML = document.getElementById("comment").value;
	document.getElementById("meta").innerHTML = document.getElementById("author").value + ' says:';
}
if((document.getElementById("comment").value == null || document.getElementById("comment").value == '')){
	document.getElementById("message").innerHTML = document.getElementById("comment").value;
	document.getElementById("commentpreview").style.display = "none";
}
}