Need Mysl query for find and replace a field

Hello

I have little experience in making modifications in mysql.  But thanks to Experts-Exchange I am able to make little changes, via phpmyadmin.

I have a database named "foobar" and one of the tables in it is named "foobar_menu",  And in that table is a field named "params"

I would like the query to search the params field for (include all the quotes) :

"show_page_heading":1,"

And replace it with

"show_page_heading":0,"

That's "all" I want it to do.  An exact match and exact replace

phpMyAdmin - 2.11.11.3
MySQL client version: 5.0.95
Server version: 5.0.95-log

And, yes I have a backup of the database.

Thanks!

Rowby