Currying FTW

gistfile1.js

var tag = 'div',
    attrs = { className: 'foo', id: 'bar' },
    slice = Array.prototype.slice;
    
isContent = function(c) {
    var un = "undefined";
    return c !== null && typeof c !== un && 
        (typeof c.nodeType !== un ||
         typeof c === "string");
}

el = function(tagName, attributes, content) {
    tagName = tagName || "div";
    if (isContent(attributes)) {
        content = attributes;
        attributes = {};
    }
    attributes = attributes || {}
    e = document.createElement(tagName);
    for (var k in attributes) {
        e[k] = attributes[k];
    }
    if (content) {
        if (typeof content === "string") {
            e.appendChild(document.createTextNode(content));
        } else {
            e.appendChild(content);
        }
    }
    return e;
}

partial = function(fn) {
    var args = slice.call(arguments, 1);
    return function() {
        return fn.apply(this, args.concat(slice.call(arguments)));
    }
}

DOM = {};

allTags = ["div", "p", "ul", "li"];
allTags.forEach(function(t) {
    DOM[t] = partial(el, t);
});