var commentDefault = "Write your comments here...";
var nameDefault = "Your Name (optional)";

function clearDefault(what) {
	
	if (what.name == "comment") { defaultText = commentDefault; }
	else if (what.name == "name") { defaultText = nameDefault; }

	if ( what.value == defaultText ) { what.value = ""; }
	
}

function restoreDefault(what) {
	
	if (what.name == "comment") { defaultText = commentDefault; }
	else if (what.name == "name") { defaultText = nameDefault; }
	
	if ( what.value == "" ) { what.value = defaultText; }

}