Jemplate is a templating framework for Javascript that is built over
Perl's Template Toolkit (TT2).

Jemplate parses TT2 templates using the TT2 Perl framework, but with a
twist.  Instead of compiling the templates into Perl code, it compiles
them into Javascript.  Jemplate then provides a Javascript runtime
module for processing the template code.  Combined with JSON and
xmlHttpRequest, Jemplate provides a simple and powerful way to do Ajax
stuff.