gistfile1.js

// simple jQuery templating: replace placeholders in textnodes
// placeholder format: ${a-z}
// usage $(elem).render({ dataKey: dataValue });
// demo: http://badsyntax.github.com/jquery-templating.html

$.fn.render = function(data){

        data = data || {};

        function walkTextNodes(textNodeCallback){

                (this.nodeType === 3 && textNodeCallback) && textNodeCallback.call(this);

                $.each(this.childNodes, function(){
                        walkTextNodes.call(this, textNodeCallback);
                });     
        }       

        function replace(key){
                this.nodeValue = this.nodeValue.replace(new RegExp('\\$\{' + key + '\}', 'g'), data[key]);
        }       

        return this.each(function(){

                walkTextNodes.call(this, function(){

                        var nodeValue = this.nodeValue.replace(new RegExp('\\n', 'g'), '');

                        while(match = /\{(.*?)\}/g.exec(nodeValue))
                                (data[match[1]]) && replace.call(this, match[1]);
                });     
        });     
};