/* jQuery Plugins */



(function ($) {
	
	/* labelOver
	Description: Script for showing/hiding a label over the search box
	*/

	/*
	Finds the appropriate document element and sets up event handlers to move the 
	label out of view and back into view depending on the contents of the search box,
	and the position of the mouse
	*/
	
	jQuery.fn.labelOver = function(overClass) {
	  return this.each(function(){
	    var label = jQuery(this);
	    var f = label.attr('for');
	    if (f) {
	      var input = jQuery('#' + f);
	      this.hide = function() {
	        label.css({ textIndent: -10000 })
	      }
	      this.show = function() {
	        if (input.val() == '') label.css({ textIndent: 0 })
	      }
	      input.focus(this.hide);
	      input.blur(this.show);
	      label.addClass(overClass).click(function(){ input.focus() });
	      if (input.val() != '') this.hide();
	    }
	  });
	};
	
	/*
	  @author: remy sharp / http://remysharp.com
	  @params:
	    feedback - the selector for the element that gives the user feedback. Note that this will be relative to the form the plugin is run against.
	    hardLimit - whether to stop the user being able to keep adding characters. Defaults to true.
	    useInput - whether to look for a hidden input named 'maxlength' instead of the maxlength attribute. Defaults to false.
	    words - limit by characters or words, set this to true to limit by words. Defaults to false.
	  @license: Creative Commons License - ShareAlike http://creativecommons.org/licenses/by-sa/3.0/
	  @version: 1.2
	  @changes: code tidy via Ariel Flesler and fix when pasting over limit and including \t or \n
	*/
	
	
	$.fn.maxlength = function (settings) {

	    if (typeof settings == 'string') {
	        settings = { feedback : settings };
	    }

	    settings = $.extend({}, $.fn.maxlength.defaults, settings);

	    function length(el) {
	    	var parts = el.value;
	    	if ( settings.words )
	    		parts = el.value.length ? parts.split(/[\s\-\_\,\+\.]+/) : { length : 0 };
	    	return parts.length;
	    }

	    return this.each(function () {
	        var field = this,
	        	$field = $(field),
	        	$form = $(field.form),
	        	limit = settings.useInput ? $form.find('input[name=maxlength]').val() : $field.attr('maxlength'),
	        	$charsLeft = $form.find(settings.feedback);

	    	function limitCheck(event) {
	        	var len = length(this),
	        	    exceeded = len >= limit,
	        		code = event.keyCode;

	        	if ( !exceeded )
	        		return;

	            switch (code) {
	                case 8:  // allow delete
	                case 9:
	                case 17:
	                case 36: // and cursor keys
	                case 35:
	                case 37: 
	                case 38:
	                case 39:
	                case 40:
	                case 46:
	                case 65:
	                    return;

	                default:
	                    return settings.words && code != 32 && code != 13 && len == limit;
	            }
	        }


	        var updateCount = function () {
	            var len = length(field),
	            	diff = limit - len;

	            $charsLeft.html( diff || "0" );

	            // truncation code
	            if (settings.hardLimit && diff < 0) {
	            	field.value = settings.words ? 
	            	    // split by white space, capturing it in the result, then glue them back
	            		field.value.split(/(\s+)/, (limit*2)-1).join('') :
	            		field.value.substr(0, limit);

	                updateCount();
	            }
	        };

	        $field.keyup(updateCount).change(updateCount);
	        if (settings.hardLimit) {
	            $field.keydown(limitCheck);
	        }

	        updateCount();
	    });
	};
	
})(jQuery);