update IE notes

diff --git a/docs/index.html b/docs/index.html
index 772ab2c..c5917ce 100644 (file)
--- a/docs/index.html
+++ b/docs/index.html
@@ -358,9 +358,15 @@
 
       <h2 id="ie">Internet Explorer Compatibility</h2>
 
-      <p>The dygraphs library relies heavily on HTML's <code>&lt;canvas&gt;</code> tag, which Microsoft Internet Explorer does not support. Fortunately, some clever engineers created the <a href="http://code.google.com/p/explorercanvas/">excanvas</a> library, which implements the <code>&lt;canvas&gt;</code> tag in IE using VML.</p>
+      <p>The dygraphs library relies heavily on the HTML5 <code>&lt;canvas&gt;</code> tag, which Microsoft Internet Explorer did not traditionally support. To use Microsoft's native canvas implementation in IE9, you need to set an HTML5 doctype on your page:</p>
 
-      <p>You can add IE support to any page using dygraphs by including the following in your page:</p>
+      <pre>
+      &lt;!DOCTYPE html&gt; 
+      </pre>
+
+      <p>When IE9 is in HTML5 mode, dygraphs works just like in other modern browsers.</p>
+
+      <p>If you want to support previous versions of Internet Explorer (IE6&ndash;IE8), you'll need to include the <a href="http://code.google.com/p/explorercanvas/">excanvas</a> library, which emulates the <code>&lt;canvas&gt;</code> tag using VML. You can add excanvas by including this snippet:</p>
 
 <pre>
 &lt;head&gt;
@@ -368,7 +374,7 @@
 &lt;/head&gt;
 </pre>
 
-    <p>This works quite well in practice. Charts are responsive, even under VML emulation.</p>
+    <p>While this sounds like it would be slow, it works well in practice for most charts.</p>
 
     <p>One common gotcha to look out for: make sure you don't have any trailing commas in parameter lists, e.g.</p>