diff -r a4642baaf829 -r 4d4862461b8d web/wp-admin/js/comment.dev.js
--- a/web/wp-admin/js/comment.dev.js	Tue Feb 02 14:45:47 2010 +0000
+++ b/web/wp-admin/js/comment.dev.js	Tue Feb 02 15:44:16 2010 +0000
@@ -1,37 +1,47 @@
-jQuery(document).ready( function($) {
-
-	var stamp = $('#timestamp').html();
-	$('.edit-timestamp').click(function () {
-		if ($('#timestampdiv').is(":hidden")) {
-			$('#timestampdiv').slideDown("normal");
-			$('.edit-timestamp').hide();
-		}
-		return false;
-	});
-
-	$('.cancel-timestamp').click(function() {
-		$('#timestampdiv').slideUp("normal");
-		$('#mm').val($('#hidden_mm').val());
-		$('#jj').val($('#hidden_jj').val());
-		$('#aa').val($('#hidden_aa').val());
-		$('#hh').val($('#hidden_hh').val());
-		$('#mn').val($('#hidden_mn').val());
-		$('#timestamp').html(stamp);
-		$('.edit-timestamp').show();
-		return false;
-	});
-
-	$('.save-timestamp').click(function () { // crazyhorse - multiple ok cancels
-		$('#timestampdiv').slideUp("normal");
-		$('.edit-timestamp').show();
-		$('#timestamp').html(
-			commentL10n.submittedOn + ' <b>' +
-			$( '#mm option[value=' + $('#mm').val() + ']' ).text() + ' ' +
-			$('#jj').val() + ', ' +
-			$('#aa').val() + ' @ ' +
-			$('#hh').val() + ':' +
-			$('#mn').val() + '</b> '
-		);
-		return false;
-	});
+jQuery(document).ready( function($) {
+
+	var stamp = $('#timestamp').html();
+	$('.edit-timestamp').click(function () {
+		if ($('#timestampdiv').is(":hidden")) {
+			$('#timestampdiv').slideDown("normal");
+			$('.edit-timestamp').hide();
+		}
+		return false;
+	});
+
+	$('.cancel-timestamp').click(function() {
+		$('#timestampdiv').slideUp("normal");
+		$('#mm').val($('#hidden_mm').val());
+		$('#jj').val($('#hidden_jj').val());
+		$('#aa').val($('#hidden_aa').val());
+		$('#hh').val($('#hidden_hh').val());
+		$('#mn').val($('#hidden_mn').val());
+		$('#timestamp').html(stamp);
+		$('.edit-timestamp').show();
+		return false;
+	});
+
+	$('.save-timestamp').click(function () { // crazyhorse - multiple ok cancels
+		var aa = $('#aa').val(), mm = $('#mm').val(), jj = $('#jj').val(), hh = $('#hh').val(), mn = $('#mn').val(),
+			newD = new Date( aa, mm - 1, jj, hh, mn );
+
+		if ( newD.getFullYear() != aa || (1 + newD.getMonth()) != mm || newD.getDate() != jj || newD.getMinutes() != mn ) {
+			$('.timestamp-wrap', '#timestampdiv').addClass('form-invalid');
+			return false;
+		} else {
+			$('.timestamp-wrap', '#timestampdiv').removeClass('form-invalid');
+		}
+
+		$('#timestampdiv').slideUp("normal");
+		$('.edit-timestamp').show();
+		$('#timestamp').html(
+			commentL10n.submittedOn + ' <b>' +
+			$( '#mm option[value=' + mm + ']' ).text() + ' ' +
+			jj + ', ' +
+			aa + ' @ ' +
+			hh + ':' +
+			mn + '</b> '
+		);
+		return false;
+	});
 });
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