how to create template for json

            var Element = (function (tag) {
                this.tag = tag;
                this.object = "";
                this.clas = "";
                this.style = "";
                this.id = "";
                this.content = "";
                this.href = "";

                this.create = function () {
                    this.object = document.createElement(this.tag);
                    return this;
                };

                this.setContent = function (content) {
                    this.content = content;
                    this.object.innerHTML = this.content;
                    return this;
                };

                this.setId = function (id) {
                    this.id = id;
                    this.object.setAttribute("id", id);
                    return this;
                };

                this.setHref = function (href) {
                    this.href = href;
                    this.object.setAttribute("href", href);
                    return this;
                };

                this.setClass = function (clas) {
                    this.clas = clas;
                    this.object.setAttribute("class", clas);
                    return this;
                };

                this.setStyle = function (style) {
                    this.style = style;
                    this.object.setAttribute("style", style);
                    return this;
                };

                this.appendTo = function (parent) {
                    parent.appendChild(this.object);
                    return this;
                };

                this.o = function () {
                    return this.object;
                };

                this.create();

                return this;

            });

            var container = document.getElementById("divs");

    // start loop here for json data
            var div1 = new Element("div").setClass("span4").setStyle("margin-left: 0.8em;").appendTo(container);
            var div1h2 = new Element("h2").setContent(data["title"]).appendTo(div1.o());
            var div1p = new Element("p").setContent(data["content"]).appendTo(div1.o());
            var div1p2 = new Element("p").appendTo(div1.o());
            var div1p2a = new Element("a").setContent('Read more »').setHref('somurl').setClass("btn").appendTo(div1p2.o());