Problem with event creation

[trevorwood]

I'm trying to give some people the ability to create events via the front end of a Joomla site. The URL I'm using is domainname/index.php?option=com_civicrm&task=civicrm/event/add&reset=1&action=add

If that's all I do, there's no problem, except that it pops up in a page with the website template around it and it doesn't fit properly. To get over this, I tried to pop it up in another window using Modal

{modal url=[index.php?option=com_civicrm&task=civicrm/event/add&action=add&reset=1]|width=800|height=600}Create An Event{/modal}

That pops up OK, but now I can't use the template option. Every time I select a template, it just clears the form and resets to blank.

Any ideas please