/*
 * tools.js (www.settour.sk)
 * Provides functions used for the lastminute offers
 */

function switchDetails(imageId, nodeId)
{
	if (document.getElementById(nodeId).style.display == 'none') {
		document.getElementById(nodeId).style.display = 'block';
	} else {
		document.getElementById(nodeId).style.display = 'none';
	}

	return false;
}

/**
 * equivalen to the PHP function
 */
function number_format (number, decimals, dec_point, thousands_sep)
{
  var exponent = "";
  var numberstr = number.toString ();
  var eindex = numberstr.indexOf ("e");
  if (eindex > -1)
  {
    exponent = numberstr.substring (eindex);
    number = parseFloat (numberstr.substring (0, eindex));
  }

  if (decimals != null)
  {
    var temp = Math.pow (10, decimals);
    number = Math.round (number * temp) / temp;
  }
  var sign = number < 0 ? "-" : "";
  var integer = (number > 0 ?
      Math.floor (number) : Math.abs (Math.ceil (number))).toString ();

  var fractional = number.toString ().substring (integer.length + sign.length);
  dec_point = dec_point != null ? dec_point : ".";
  fractional = decimals != null && decimals > 0 || fractional.length > 1 ?
               (dec_point + fractional.substring (1)) : "";
  if (decimals != null && decimals > 0)
  {
    for (i = fractional.length - 1, z = decimals; i < z; ++i)
      fractional += "0";
  }

  thousands_sep = (thousands_sep != dec_point || fractional.length == 0) ?
                  thousands_sep : null;
  if (thousands_sep != null && thousands_sep != "")
  {
	for (i = integer.length - 3; i > 0; i -= 3)
      integer = integer.substring (0 , i) + thousands_sep + integer.substring (i);
  }

  return sign + integer + fractional + exponent;
}

/**
 * Adds an error message in the conatiner.
 */
function addErrmsg(conatinerId, msg)
{
  var errConainer
  if ( !(errConainer = $(conatinerId)) )
    return false;

  var rowHtml = '<p class="errmsg">'+ msg +'</p>';
  Element.insert(errcontainer.down(), {bottom: rowHtml} );
  return true;
}

/**
 * Removes all error messages from the container.
 */
function flushErrmsg(containerId)
{
  return true;
}

/**
 * sets the value of a select element
 */
function selectSetValue(selId, selValue)
{
  var obj = document.getElementById(selId);
  var len = obj.options.length;

  if ( (!obj) || (!len) )
    return false;

  for ( var i = 0; i < len; i++ )
  {
    if ( obj.options[ i ].value == selValue ) {
      obj.options[ i ].selected = true
      return true;
    }
  }

  return false;
}

/*
 * Submits form after click in <button>
 */
var form_is_just_submited = false;
function submitFormButton(form)
{
  if (!form_is_just_submited) {
    form.submit();
  } else form_is_just_submited = false;
}

/**
 * Activates a graphical button by removing the disabled class
 */
function setButtonActive(buttonid)
{
  var buttonEl  = null;
  if ( !(buttonEl = $(buttonid)) )
    return false;

  buttonEl.removeClassName('disabled');
  buttonEl.disabled = false;

  return true;
}

function setButtonDisabled(buttonid)
{
  var buttonEl  = null;
  if ( !(buttonEl = $(buttonid)) )
    return false;

  buttonEl.addClassName('disabled');
  buttonEl.disabled = true;

  return true;
}