Element.prototype.serializeNamedChildren

@Description: Serialzies all child elements that have name attributes contained within the Element including text, textarea, select, select-multiple, radio, checkbox and any other misc elements with name attributes
@File: Element/prototype/serializeNamedChildren.js
@Param: object o Optional, The properties of an sb.ajax instance, e.g. url, onResponse, etc, if sent the data is send to that address
@Return: String first_name=paul&day=tues
@Example:

//just return the serialized data
var string = $('#myElement').serializeNamedChildren();

//serialize and send data to url
var string = $('#myElement').serializeNamedChildren('/some/page');

//serialize and send using more complex ajax object
var string = $('#myElement').serializeNamedChildren({
    url : '/some/page',
    onResponse : function(r){
        alert(r);
    }
});