update xmlNodeSetContent() and xmlNodeSetContentLen() to allow updating an

* tree.c: update xmlNodeSetContent() and xmlNodeSetContentLen()
  to allow updating an attribute content
Daniel
diff --git a/doc/index.html b/doc/index.html
index 58fd8d0..9491ca5 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -3,11 +3,11 @@
 <head>
 <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type">
 <style type="text/css"><!--
-TD {font-size: 10pt; font-family: Verdana,Arial,Helvetica}
-BODY {font-size: 10pt; font-family: Verdana,Arial,Helvetica; margin-top: 5pt; margin-left: 0pt; margin-right: 0pt}
-H1 {font-size: 16pt; font-family: Verdana,Arial,Helvetica}
-H2 {font-size: 14pt; font-family: Verdana,Arial,Helvetica}
-H3 {font-size: 12pt; font-family: Verdana,Arial,Helvetica}
+TD {font-size: 14pt; font-family: Verdana,Arial,Helvetica}
+BODY {font-size: 14pt; font-family: Verdana,Arial,Helvetica; margin-top: 2em; margin-left: 0em; margin-right: 0em}
+H1 {font-size: 20pt; font-family: Verdana,Arial,Helvetica}
+H2 {font-size: 18pt; font-family: Verdana,Arial,Helvetica}
+H3 {font-size: 16pt; font-family: Verdana,Arial,Helvetica}
 A:link, A:visited, A:active { text-decoration: underline }
 --></style>
 <title>The XML C library for Gnome</title>
@@ -26,7 +26,7 @@
 <td valign="top" width="200" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td>
 <table width="100%" border="0" cellspacing="1" cellpadding="3">
 <tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Main Menu</b></center></td></tr>
-<tr><td bgcolor="#fffacd"><ul style="margin-left: -2pt">
+<tr><td bgcolor="#fffacd"><ul style="margin-left: -1em">
 <li><a href="index.html">Home</a></li>
 <li><a href="intro.html">Introduction</a></li>
 <li><a href="FAQ.html">FAQ</a></li>
@@ -60,7 +60,7 @@
 </table>
 <table width="100%" border="0" cellspacing="1" cellpadding="3">
 <tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Related links</b></center></td></tr>
-<tr><td bgcolor="#fffacd"><ul style="margin-left: -2pt">
+<tr><td bgcolor="#fffacd"><ul style="margin-left: -1em">
 <li><a href="http://mail.gnome.org/archives/xml/">Mail archive</a></li>
 <li><a href="http://xmlsoft.org/XSLT/">XSLT libxslt</a></li>
 <li><a href="http://phd.cs.unibo.it/gdome2/">DOM gdome2</a></li>