var day;
var month;
var year;
var hour;
var minute;
var second;
var clock_set = 0;

/**
 * Opens calendar window.
 *
 * @param   string      calendar.php parameters
 * @param   string      form name
 * @param   string      field name
 * @param   string      edit type - date/timestamp
 */
 
function openCalendar(params, form, field, type) {
    window.open(params, "calendar", "width=400,height=270,status=yes");
    dateField = eval("document." + form + "." + field);
    dateType = type;
}