Given the following classes and controller action method:
public School
{
public Int32 ID { get; set; }
publig String Name { get; set; }
public Address
Using two Backslashes it´s ok, it´s work. But if you are using a dynamic name, I mean, a variable name, you will need to replace characters.
If you don´t wan´t to change your variables names you can do this:
var variable="namewith.andother";
var jqueryObj = $(document.getElementById(variable));
and than you have your jquery object.