1 files changed, 5 insertions, 1 deletions
diff --git a/demos/quickstart/protected/pages/Controls/Captcha.page b/demos/quickstart/protected/pages/Controls/Captcha.page
index 244a3adc..a0af13e5 100644
--- a/demos/quickstart/protected/pages/Controls/Captcha.page
+++ b/demos/quickstart/protected/pages/Controls/Captcha.page
@@ -16,7 +16,11 @@ The token generated by <tt>TCaptcha</tt> can be configured in several ways. To s
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 <p>
-To specify the appearance of the generated token image, set <tt>TokenImageTheme</tt> to be an integer between 0 and 31. You may try the following example to see how this value affects the generated token image. The size of the generated token image is determined by <tt>TokenFontSize</tt>. In particular, the image width is proportional to the font size. You may also set <tt>Width</tt> to scale the generated image to your desired size, but the scaled image may not look good.
+The validation of the token is related with two properties: <tt>TestLimit</tt> (defaults to 5 times) and <tt>TokenExpiry</tt> (defaults to 600 seconds). The former specifies how many times a token can be tested with on the server side, and the latter says when a generated token will expire. If the validation fails in any of the two scenarios, a new token will be automatically generated.
+</p>
+
+<p>
+To specify the appearance of the generated token image, set <tt>TokenImageTheme</tt> to be an integer between 0 and 31. You may try the following example to see how this value affects the generated token image. The size of the generated token image is determined by <tt>TokenFontSize</tt>. In particular, the image width is proportional to the font size. You may also set <tt>Width</tt> to scale the generated image to your desired size, but the scaled image may not look good. By setting <tt>ChangingTokenBackground</tt> to true, the image background of the token will be variating even though the token is the same during postbacks.
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