micro-mustache.js

// Simple JavaScript Templating
// John Resig - http://ejohn.org/ - MIT Licensed
(function(){
  var cache = {};
  
  this.tmpl = function tmpl(str, data){
	// Figure out if we're getting a template, or if we need to
	// load the template - and be sure to cache the result.
	var fn = !/\W/.test(str) ?
        cache[str] = cache[str] ||
		tmpl(document.getElementById(str).innerHTML) :
	  
	  // Generate a reusable function that will serve as a template
	  // generator (and which will be cached).
	  new Function("obj",
		"var p=[],print=function(){p.push.apply(p,arguments);};" +
		
		// Introduce the data as local variables using with(){}
	        "with(obj){p.push('" +
			
		// Convert the template into pure JavaScript
		str
		  .replace(/[\r\t\n]/g, " ")
		  .split("{{").join("\t")
		  .replace(/((^|\}\})[^\t]*)'/g, "$1\r")
		  .replace(/\t=(.*?)\}\}/g, "',$1,'")
		  .split("\t").join("');")
		  .split("}}").join("p.push('")
		  .split("\r").join("\\'")
		+ "');}return p.join('');");
		
	// Provide some basic currying to the user
	return data ? fn( data ) : fn;
  };
})();

micro-mustache.min.js

(function(){var a={};this.tmpl=function b(c,d){var e=!/\W/.test(c)?a[c]=a[c]||b(document.getElementById(c).innerHTML):new Function("obj","var p=[],print=function(){p.push.apply(p,arguments);};"+"with(obj){p.push('"+c.replace(/[\r\t\n]/g," ").split("{{").join("\t").replace(/((^|\}\})[^\t]*)'/g,"$1\r").replace(/\t=(.*?)\}\}/g,"',$1,'").split("\t").join("');").split("}}").join("p.push('").split("\r").join("\\'")+"');}return p.join('');");return d?e(d):e}})()