/*
 * Shared javascript functions for all pages
 *
 * Bartosz Moszczynski
 * Vivid Associates Ltd
 * 2009
 */

 
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  return document.getElementById(element);
}

/**
 * puts innerHTML into select elemnt, deals with IE select.innerHTML bug
 */
function selectSetInnerHTML( element, innerHTML ) {
  if ( window.ActiveXObject ) {
    element.outerHTML = element.outerHTML.substring( 0, element.outerHTML.indexOf(">") + 1 ) + innerHTML + "</select>";
  } else
    element.innerHTML = innerHTML;
}

/**
 * returns value of radio button, null if nothing has been selected
 */
function getRadioValue( radioElem ) {
  for ( var i = 0; i < radioElem.length; i++ )
    if ( radioElem[ i ].checked )
      return radioElem[ i ].value;
  
  return null;
}

/**
* Returns  : The textual representation of the array.
* This function was inspired by the print_r function of PHP.
* This will accept some data as the argument and return a
* text that will be a more readable version of the
* array/hash/object that is given.
* 
* Arguments: The data - array,hash(associative array),object
*    The level - OPTIONAL
*/
function debug_(arr,level) {
  var dumped_text = "";
  if(!level) level = 0;

  //The padding given at the beginning of the line.
  var level_padding = "";
  for(var j=0;j<level+1;j++) 
    level_padding += "    ";


  if ( arr instanceof Array ) {
    for(var item = 0; item < arr.length; item++ ) {
      var value = arr[item];
 
      if(typeof(value) == 'object') { //If it is an array,
        dumped_text += level_padding + "'" + item + "' ...\n";
        dumped_text += debug_(value,level+1);
      } else {
        dumped_text += level_padding + "'" + item + "' => \"" + value + "\"\n\n";
      }
    }
  } else if(typeof(arr) == 'object') { //Array/Hashes/Objects
    for(var item in arr) {
      var value = arr[item];
 
      if(typeof(value) == 'object') { //If it is an array,
        dumped_text += level_padding + "'" + item + "' ...\n";
        dumped_text += debug_(value,level+1);
      } else {
        dumped_text += level_padding + "'" + item + "' => \"" + value + "\"\n\n";
      }
    }
  } else { //Stings/Chars/Numbers etc.
    dumped_text = "===>"+arr+"<===("+typeof(arr)+")";
  }
  
  return dumped_text;
}

/*
 * Prints parameters into firebug window (firefox extension)
 */
function printfire()
{
    if (document.createEvent)
    {
        printfire.args = arguments;
        var ev = document.createEvent("Events");
        ev.initEvent("printfire", false, true);
        dispatchEvent(ev);
    }
}

/**
 * Prints debug info into firebug window (firefox extension)
 */
function debugf( arr, level ) {
  if ( window.console )
    console.log( debug_ ( arr, level ) );
  else
    debugd( arr, level )
} 

bindMethod = function ( object, method ) { 
  var tmp = function() {
    return method.apply( object, arguments );
  };
  
  return tmp;
};

/*
 * Date Format 1.2.3
 * (c) 2007-2009 Steven Levithan <stevenlevithan.com>
 * MIT license
 *
 * Includes enhancements by Scott Trenda <scott.trenda.net>
 * and Kris Kowal <cixar.com/~kris.kowal/>
 *
 * Accepts a date, a mask, or a date and a mask.
 * Returns a formatted version of the given date.
 * The date defaults to the current date/time.
 * The mask defaults to dateFormat.masks.default.
 */

var dateFormat = function () {
  var  token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
    timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
    timezoneClip = /[^-+\dA-Z]/g,
    pad = function (val, len) {
      val = String(val);
      len = len || 2;
      while (val.length < len) val = "0" + val;
      return val;
    };

  // Regexes and supporting functions are cached through closure
  return function (date, mask, utc) {
    var dF = dateFormat;

    // You can't provide utc if you skip other args (use the "UTC:" mask prefix)
    if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
      mask = date;
      date = undefined;
    }

    // Passing date through Date applies Date.parse, if necessary
    date = date ? new Date(date) : new Date;
    if (isNaN(date)) throw SyntaxError("invalid date");

    mask = String(dF.masks[mask] || mask || dF.masks["default"]);

    // Allow setting the utc argument via the mask
    if (mask.slice(0, 4) == "UTC:") {
      mask = mask.slice(4);
      utc = true;
    }

    var  _ = utc ? "getUTC" : "get",
      d = date[_ + "Date"](),
      D = date[_ + "Day"](),
      m = date[_ + "Month"](),
      y = date[_ + "FullYear"](),
      H = date[_ + "Hours"](),
      M = date[_ + "Minutes"](),
      s = date[_ + "Seconds"](),
      L = date[_ + "Milliseconds"](),
      o = utc ? 0 : date.getTimezoneOffset(),
      flags = {
        d:    d,
        dd:   pad(d),
        ddd:  dF.i18n.dayNames[D],
        dddd: dF.i18n.dayNames[D + 7],
        m:    m + 1,
        mm:   pad(m + 1),
        mmm:  dF.i18n.monthNames[m],
        mmmm: dF.i18n.monthNames[m + 12],
        yy:   String(y).slice(2),
        yyyy: y,
        h:    H % 12 || 12,
        hh:   pad(H % 12 || 12),
        H:    H,
        HH:   pad(H),
        M:    M,
        MM:   pad(M),
        s:    s,
        ss:   pad(s),
        l:    pad(L, 3),
        L:    pad(L > 99 ? Math.round(L / 10) : L),
        t:    H < 12 ? "a"  : "p",
        tt:   H < 12 ? "am" : "pm",
        T:    H < 12 ? "A"  : "P",
        TT:   H < 12 ? "AM" : "PM",
        Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
        o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
        S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
      };

    return mask.replace(token, function ($0) {
      return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
    });
  };
}();

// Some common format strings
dateFormat.masks = {
  "default":      "ddd mmm dd yyyy HH:MM:ss",
  shortDate:      "m/d/yy",
  mediumDate:     "mmm d, yyyy",
  longDate:       "mmmm d, yyyy",
  fullDate:       "dddd, mmmm d, yyyy",
  shortTime:      "h:MM TT",
  mediumTime:     "h:MM:ss TT",
  longTime:       "h:MM:ss TT Z",
  isoDate:        "yyyy-mm-dd",
  isoTime:        "HH:MM:ss",
  isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
  isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
};

// Internationalization strings
dateFormat.i18n = {
  dayNames: [
    "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
    "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
  ],
  monthNames: [
    "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
    "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
  ]
};

// For convenience...
Date.prototype.format = function (mask, utc) {
  return dateFormat(this, mask, utc);
};

// xor operator
function xor ( a, b ) {
  return a ? !b : b;
}

var ML_COMMON;