Handlebars Set Helper: Capture a block of content and store it in a variable.

set.js

/*
 * Usages:
 * {{#set "content"}}
 *   captured content
 * {{/set}}
 * My {{ content }}
 */
Handlebars.registerHelper('set', function(name, options) {
	this[name] = options.fn(this);
	return null;
});