(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;
		};
	})();