Unable to attach photo in iPhoto library using gmail in Safari

I am unable to attach a photo that is in the iphoto library when I am sending an email from my gmail account in Safari. The way it should work is to go to Compose new emai, then click on attach file which opens a window to navigate to the photos folder. Inside that folder is a iphoto library which has the photo I want to send. It is not possible to open the library and choose the photo! Instead it tries to attach the entire library! I have no problem attaching photos that are in folders in the photos folder.

I know Ican open the photos folder and find the picture and drag it to the message. What I want to do is be able to use the attach file dialogue window. Thanks!!!