/* jQuery timepicker
 * replaces a single text input with a set of pulldowns to select hour, minute, and am/pm
 *
 * Copyright (c) 2007 Jason Huck/Core Five Creative (http://www.corefive.com/)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) 
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * Version 1.0
 */

(function($) {
    jQuery.fn.timepicker = function() {
        this.each(function() {
            // get the ID and value of the current element
            var i = this.id;
            var v = $(this).val();

            // the options we need to generate
            var hrs = new Array('01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12');
            var mins = new Array('00', '15', '30', '45');
            var ap = new Array('am', 'pm');

            // default to the current time
            // daniel@larsen.net.nz has modded so that caller can decide what default time is, else blank.
            var d = new Date;
            var h = -1; //d.getHours();
            var m = -1; //d.getMinutes();
            var p = ''; //(h >= 12 ? 'pm' : 'am');

            // adjust hour to 12-hour format
            if (h > 12) h = h - 12;

            // round minutes to nearest quarter hour
//            for (mn in mins) {
//                if (m <= parseInt(mins[mn])) {
//                    m = parseInt(mins[mn]);
//                    break;
//                }
//            }

            // increment hour if we push minutes to next 00
            if (m > 45) {
                m = 0;

                switch (h) {
                    case (11):
                        h += 1;
                        p = (p == 'am' ? 'pm' : 'am');
                        break;

                    case (12):
                        h = 1;
                        break;

                    default:
                        h += 1;
                        break;
                }
            }

            // override with current values if applicable
            if (v.length == 7) {
                h = parseInt(v.substr(0, 2));
                m = parseInt(v.substr(3, 2));
                p = v.substr(5);
            }

            // build the new DOM objects
            var output = '';

            output += '<select id="h_' + i + '" class="hh timepicker">';
            output += "<option value=''></option>";
            for (hr in hrs) {
                output += '<option value="' + hrs[hr] + '"';
                if (parseInt(hrs[hr]) == h) output += ' selected';
                output += '>' + hrs[hr] + '</option>';
            }
            output += '</select>';

            output += '<select id="m_' + i + '" class="mm timepicker">';
            output += "<option value=''></option>";
            for (mn in mins) {
                output += '<option value="' + mins[mn] + '"';
                if (parseInt(mins[mn]) == m) output += ' selected';
                output += '>' + mins[mn] + '</option>';
            }
            output += '</select>';

            output += '<select id="p_' + i + '" class="ap timepicker">';
            output += "<option value=''></option>";
            for (pp in ap) {
                output += '<option value="' + ap[pp] + '"';
                if (ap[pp] == p) output += ' selected';
                output += '>' + ap[pp] + '</option>';
            }
            output += '</select>';

            // hide original input and append new replacement inputs
            $(this)[0].style.display = "none"; // .attr('type', 'hidden')
            $(this).after(output);
        });

        $('select.timepicker').change(function() {
            var i = this.id.substr(2);
            var h = $('#h_' + i).val();
            var m = $('#m_' + i).val();
            var p = $('#p_' + i).val();
            var v = h + ':' + m + p;
            $('#' + i).val(v);
        });

        return this;
    };
})(jQuery);



/* SVN: $Id: jquery.timepicker.js 456 2007-07-16 19:09:57Z Jason Huck $ */