How to insert a button in the tinyMCE editor for creating Math equations, graph,...?

Hi all,

I'm using "Mathjax support" plugin ( http://community.elgg.org/plugins/725026/1.0/mathjax-support-for-elgg-18 ) to create Math equations but i find it really difficult for the users who don't know Latex. I googled this and found that tinyMCE could have some buttons for creating Math equations.(The links below)


http://www.imathas.com/editordemo/demo.html
http://www.codecogs.com/latex/integration/tinymce/install.php
http://www.tinymce.com/forum/viewtopic.php?id=13917

However, i don't know how to have it in tinyMCE plugin in Elgg :(

Could anyone help me?

Many thanks,

Bill Dre