In my joomla site, I use jquery to load and display a Live Help Messenger.

All pages load and display the messenger fine, but one page doesn't.

This page loads an iframe (a microsite with 5 menus).

To open the microsite I type a url in address bar like this: www.mysite.com/menu1 or www.mysite.com/menu2.

When I type the 1st url and navigate to all microsite's pages, everything is loaded without error but when I type the second url I get " Uncaught ReferenceError: jQuery is not defined", in every microsite's page.

Can anyone help me with this?

Thank you in advance