/**
* jQuery Initial input value replacer
* 
* Sets input value attribute to a starting value  
* @author Marco "DWJ" Solazzi - hello@dwightjack.com
* @license  Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
* @copyright Copyright (c) 2008 Marco Solazzi
* @version 0.1
* @requires jQuery 1.2.x
*/
(function(jQuery) {
    /**
    * Setting input initialization
    *  
    * @param {String|Object|Bool} text Initial value of the field. Can be either a string, a jQuery reference (example: $("#element")), or boolean false (default) to search for related label
    * @param {Object} [opts] An object containing options: 
    * 							e (event which triggers initial text clearing, default: "focus"), 
    * 							force (execute this script even if input value is not empty, default: false)
    * 							keep (if value of field is empty on blur, re-apply initial text, default: true)  
    */
    jQuery.fn.inputLabel = function(text, opts) {
        o = jQuery.extend({ e: "focus", force: false, keep: true }, opts || {});
        var clearInput = function(e) {
            var target = jQuery(e.target);
            var value = jQuery.trim(target.val());
            if (e.type == e.data.obj.e && value == e.data.obj.innerText) {
                jQuery(target).val("");
                if (!e.data.obj.keep) {
                    jQuery(target).unbind(e.data.obj.e + " blur", clearInput);
                }
            } else if (e.type == "blur" && value == "" && e.data.obj.keep) {
                jQuery(this).val(e.data.obj.innerText);
            }
        };
        return this.each(function() {
            o.innerText = (text || false);
            if (!o.innerText) {
                var id = jQuery(this).attr("id");
                o.innerText = jQuery(this).parents("form").find("label[for=" + id + "]").hide().text();
            }
            else
                if (typeof o.innerText != "string") {
                o.innerText = jQuery(o.innerText).text();
            }
            o.innerText = jQuery.trim(o.innerText);
            if (o.force || jQuery(this).val() == "") {
                jQuery(this).val(o.innerText);
            }
            jQuery(this).bind(o.e + " blur", { obj: o }, clearInput);

        });
    };
})(jQuery);