mshtml: Added IHTMLElement2::focus implementation.

dlls/mshtml/htmlelem2.c

@@ -397,8 +397,20 @@ static HRESULT WINAPI HTMLElement2_get_tabIndex(IHTMLElement2 *iface, short *p)
 static HRESULT WINAPI HTMLElement2_focus(IHTMLElement2 *iface)
 {
     HTMLElement *This = HTMLELEM2_THIS(iface);
-    FIXME("(%p)\n", This);
-    return E_NOTIMPL;
+    nsIDOMNSHTMLElement *nselem;
+    nsresult nsres;
+
+    TRACE("(%p)\n", This);
+
+    nsres = nsIDOMHTMLElement_QueryInterface(This->nselem, &IID_nsIDOMNSHTMLElement, (void**)&nselem);
+    if(NS_SUCCEEDED(nsres)) {
+        nsIDOMNSHTMLElement_focus(nselem);
+        nsIDOMNSHTMLElement_Release(nselem);
+    }else {
+        ERR("Could not get nsIDOMHTMLNSElement: %08x\n", nsres);
+    }
+
+    return S_OK;
 }
 
 static HRESULT WINAPI HTMLElement2_put_accessKey(IHTMLElement2 *iface, BSTR v)