/**
 * Equivalent to PHP in_array : check if needle is present
 * in haystack array
 * @author	Simon Hostelet
 * @version	2009-09-19
 * @param needle, string
 * @param haystack, array
 * @param strict, bool
 * @return bool
 */
function in_array(needle, haystack, strict)
{
	if(strict)
	{
		for(key in haystack)
		{
			if(haystack[key] === needle)
				return true;
		}
	}
	else
	{
		for(key in haystack)
		{
			if(haystack[key] == needle)
				return true;
		}
	}

	return false;
}

/**
 * Using a pattern, find and return match1 on a text
 * Used in input names to retrieve an ID (see backend_combo_add_inputs.js for example)
 * Example :
 * 		You got a series of html tag, for instance :
 * 			<input type="text" id="foobar_1>
 * 			<input type="text" id="foobar_2>
 * 			...
 * 			<input type="text" id="foobar_20>
 *
 * To find out what is the number, you call findItemId :
 * var currentId = findItemId('foobar_([0-9]+)', jQuery(this).attr('id'));
 * The part between brackets will be returned. In our example : 1, 2, ... or 20
 * depending on which one you trigger.
 *
 * @param pattern, regexp schema
 * @param text, string to be tested
 * @return string
 */
function findItemId(pattern, text)
{
	var find = new RegExp(pattern, 'gi');
	var match = new Array();
	if(match = find.exec(text))
		return match[1];
	else
		return false;
}

/**
 * Count number of elements in an array that have length==0
 * @author	Simon Hostelet
 * @version	2009-09-19
 * @param elements, array
 * @return integer
 */
function countEmptyElements(elements)
{
	var elementCount = elements.length * 1;
	var i = 0;
	var nbElementsEmpty = 0;
	for(i=0; i<elementCount; i++)
	{
		if(elements[i].value.length == 0)
			nbElementsEmpty++;
	}
	return nbElementsEmpty;
}

function ucfirst (str) {
	// Makes a string's first character uppercase
	//
	// version: 909.322
	// discuss at: http://phpjs.org/functions/ucfirst
	// +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// +   bugfixed by: Onno Marsman
	// +   improved by: Brett Zamir (http://brett-zamir.me)
	// *     example 1: ucfirst('kevin van zonneveld');
	// *     returns 1: 'Kevin van zonneveld'
	str += '';
	var f = str.charAt(0).toUpperCase();
	return f + str.substr(1);
}

/**
 * This function is called by a click on a link.
 * Change style display property to visible or invisble for
 * the given element param.
 * @author	Simon Hostelet
 * @version	2009-10-01
 * @param element
 * @return
 */
function show(event, element) {
	event.preventDefault();
	if(document.getElementById(element).style.display == 'none')
		document.getElementById(element).style.display = 'block';
	else
		document.getElementById(element).style.display = 'none';
}

function simpleEscape(element) {

	var new_element = '' ;
	new_element = element.replace(/"/g, '&quot;' );
	new_element = new_element.replace(/>/g,'&gt;');
	new_element = new_element.replace(/</g,'&lt;');

	return new_element ;
}

function str_pad (input, pad_length, pad_string, pad_type) {
  // http://kevin.vanzonneveld.net
  // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // + namespaced by: Michael White (http://getsprink.com)
  // +      input by: Marco van Oort
  // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
  // *     example 1: str_pad('Kevin van Zonneveld', 30, '-=', 'STR_PAD_LEFT');
  // *     returns 1: '-=-=-=-=-=-Kevin van Zonneveld'
  // *     example 2: str_pad('Kevin van Zonneveld', 30, '-', 'STR_PAD_BOTH');
  // *     returns 2: '------Kevin van Zonneveld-----'

  var half = '', pad_to_go;

  var str_pad_repeater = function (s, len) {
      var collect = '', i;

      while (collect.length < len) {collect += s;}
      collect = collect.substr(0,len);

      return collect;
  };

  input += '';
  pad_string = pad_string !== undefined ? pad_string : ' ';
  
  if (pad_type != 'STR_PAD_LEFT' && pad_type != 'STR_PAD_RIGHT' && pad_type != 'STR_PAD_BOTH') { pad_type = 'STR_PAD_RIGHT'; }
  if ((pad_to_go = pad_length - input.length) > 0) {
      if (pad_type == 'STR_PAD_LEFT') { input = str_pad_repeater(pad_string, pad_to_go) + input; }
      else if (pad_type == 'STR_PAD_RIGHT') { input = input + str_pad_repeater(pad_string, pad_to_go); }
      else if (pad_type == 'STR_PAD_BOTH') {
          half = str_pad_repeater(pad_string, Math.ceil(pad_to_go/2));
          input = half + input + half;
          input = input.substr(0, pad_length);
      }
  }

  return input;
}



/*
 * Change DOM element Object style bottom
 * depending on position of the window in the document.
 * 
 *  If user has scrolled down, we dont want the Object to
 *  cover up the #footer, so style.bottom value is set
 *  between 0px and #footer.height
 *  
 *  @author	Simon
 */
function setBoxBottom(object) {
  var footer = jQuery('#footer');

  var doc_height = jQuery(document).height();
  var win_height = jQuery(window).scrollTop() + jQuery(window).height();
	
  var bottom = footer.height() - (doc_height - win_height);
  
  /*
   * Define Object bottom property 'bottom' to stick it to window's bottom
   * or to stick it at the top of the footer
   */
  if(bottom <= 0 && Math.round(object.offset().top + object.height()) <= Math.round(footer.offset().top))
  {
	object.css('bottom', '0px');
  }
  else
  {
	object.css('bottom', '' + bottom  + 'px');
  }
}


/*
 * Function count the number of character
 * in object identified by "object", and
 * prevent user from filling in more
 * than "max" characters.
 * Optionnal, an object identified by
 * "counter" can be provided in order
 * to display a feedback to user of
 * number of char remaining
 * 
 * @author	Simon
 */
function countChar(object, max, counter) {
	var charLength = jQuery(object).val().length;
	
	if(charLength > max) {
		// if length of string > max, we cut it to the max
		var substr = jQuery(object).val().substr(0, max);
		jQuery(object).val(substr);
		charLength = jQuery(object).val().length;
	}
	if(counter != null) {
		jQuery(counter).html(max - charLength);
	}
}

/*
 * This function returns true if
 * browser is MSIE6 or below
 * 
 * Useful to prevent an impossible to display script
 * to run with IE6 and shitty navigators like that
 * 
 * @author	Simon
 */
function isIe6()
{
	if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) { //test for MSIE x.x;
		 var ieversion = new Number(RegExp.$1) // capture x.x portion and store as a number
		 if (ieversion <= 6) {
			 return true;
		 }
	}
	return false;
}


/*
 * Method clear object value on focus if val == default_txt
 * If default_class exists, it is also cleared.
 * 
 * On blur, if object val is null, default_txt and class
 * are applied back.
 */
function clearOnFocus(object, default_txt, default_class) {
	if(jQuery(object).val() == default_txt) {
		if(!jQuery(object).hasClass(default_class)) {
			jQuery(object).addClass(default_class);
		}
	}
	
	jQuery(object).focus(function() {
		if(jQuery(this).val() == '') {
			// value is empty, we set the default value and class
			jQuery(this).val(default_txt);
			jQuery(this).addClass(default_class);
		}
		else if(jQuery(this).val() == default_txt) {
			jQuery(this).val('');
			jQuery(this).removeClass(default_class);
		}
	});
	jQuery(object).blur(function() {
		if(jQuery(this).val() == '') {
			jQuery(this).val(default_txt);
			jQuery(this).addClass(default_class);
		}
		else if(jQuery(this).val() != default_txt) {
			jQuery(this).removeClass(default_class);
		}
	});
}