Create correct xhtml constructs

xhtmlText.go

@@ -1,11 +1,20 @@
 package atomfeed
 
-import "errors"
+import (
+	"encoding/xml"
+	"errors"
+)
+
+type XHTMLDiv struct {
+	XMLName xml.Name `xml:"div"`
+	XMLNS   string   `xml:"xmlns,attr"`
+	Content string   `xml:",innerxml"`
+}
 
 type XHTMLText struct {
 	*CommonAttributes
 	Type     string `xml:"type,attr"` // Must be xhtml
-	XHTMLDiv string `xml:"div"`
+	XHTMLDiv XHTMLDiv
 }
 
 func (x *XHTMLText) IsText() bool { return true }
@@ -15,8 +24,8 @@ func (x *XHTMLText) Check() error {
 		return errors.New("type attribute of xhtml text must be xhtml")
 	}
 
-	if x.XHTMLDiv == "" {
-		return errors.New("xhtmlDiv element of xhtml text empty")
+	if x.XHTMLDiv.XMLNS != "http://www.w3.org/1999/xhtml" {
+		return errors.New("xmlns attribute of xhtml text must be http://www.w3.org/1999/xhtml")
 	}
 
 	return nil