Shortcut document.getElementById

Reading Ajaxian Blog today and came across some very handy JavaScript. It's a great shortcut. It originated from DWR and they deserve all the credit. I'm just passing it along for those who have not seen it before.

function $() {
    var elements = new Array();
    for (var i = 0; i < arguments.length; i++) {
        var element = arguments[i];
        if (typeof element == 'string') {
            if (document.getElementById) {
                element = document.getElementById(element);
            }
            else if (document.all) {
                element = document.all[element];
            }
        }

        if (arguments.length == 1) {
            return element;
        }

        elements.push(element);
    }

    return elements;
}

So, instead of:

document.getElementById('elementName')

You can:

$('elementName')

I'm gonna start using this in all of my JavaScript!