Added a background image

doc/theme/doxygen.css

@@ -1,5 +1,13 @@
 /* The standard CSS for doxygen */
 
+body
+{
+	background-image:url('background.jpg');
+	background-attachment:fixed;
+	background-position:center; 
+	background-repeat:no-repeat;
+}
+
 body, table, div, p, dl 
 {
 	font-family: Lucida Grande, Calibri, Verdana;