diff --git a/www/api/enhance.html b/www/api/enhance.html
index c3a907e..1be1b5d 100644
--- a/www/api/enhance.html
+++ b/www/api/enhance.html
@@ -127,7 +127,10 @@
<div class="sponsbox">
<div class="sponsor">
- <a title="Sponsor: Online-Magazin" href="http://www.unkostenbeitrag.de/">Online-Magazin</a><!-- 20101101000200 -->
+ <a title="Sponsor: Atlas Multimedia" href="http://www.atlas-multimedia.de/">Atlas Multimedia</a><!-- 20101201000025 tanju.temurbas-->
+</div>
+<div class="sponsor">
+ <a title="Sponsor: Druckerei" href="http://print24.com/de/">Druckerei</a><!-- 201110010720 -->
</div>
<div class="sponsor">
<a title="Sponsor: Image Converter" href="http://www.batchphoto.com">Image Converter</a><!-- 201103010900 Bits Coffee-->
@@ -727,11 +730,11 @@
<h5>sharpen</h5>
<ol><p>Increase or decrease image contrast.</p></ol>
-<h5>contrast</h5>
-<ol><p>control the "shoulder" of the contast curve.</p></ol>
+<h5>alpha</h5>
+<ol><p>strength of the contrast, the larger the number the more 'threshold-like' it becomes.</p></ol>
-<h5>midpoint</h5>
-<ol><p>control the "toe" of the contast curve.</p></ol>
+<h5>beta</h5>
+<ol><p>midpoint of the function as a color value 0 to QuantumRange.</p></ol>
</div>