how to add or replace css class on using jquery

In this web Programming tutorial we will learn that how we can replace or Add a css Class to take effect on a specific table's row using jquery, Css Class we want to replace

.test {
background-color: #dddddd;
color: #666666;
}

Jquery Code to replace the class

above code will find the table with ID "celebs" and replace the above css class named "test" to all even Table rows using jquery.