(function($) {
	/**
	 * This plugin is used to Ajax Pagenavigation functionlity
		*/
		$.fn.ajaxpaging = function(options){
			//build main options before element iteration
			var opts = $.extend({}, $.fn.ajaxpaging.defaults, options);

			  //iterate and reformat each matched element
			return this.each(function() {
				var $this = $(this);

				//get the variables of query
				var queryString = opts.query;
				var maxpages = opts.maxpage;
				var tempPageCount = 1;

					$this.bind('click', function(){
						tempPageCount ++;

						//Ajax request for query next post item from the database
						$.ajax({
								type: "POST",
								url: "http://buffalo.com/wp-content/plugins/bn-widgets/ajax-query.php",
								data: queryString + "&paged=" + tempPageCount,
								dataType: "html",
								beforeSend: loadingImage,
								success: function(msg){

									//append the new content
									$("#ajax-post-container").append(msg);

									ga('send', 'event', 'button', 'click', 'river'+window.location.pathname);
									ga('send', 'pageview', window.location.pathname);



									/*_gaq.push(['_trackEvent', 'riverBlitz', 'LoadMore', window.location.pathname]);
									_gaq.push(['_trackPageview', window.location.pathname]);*/

									/** hide next link for fetch more post if you are in the last page */
									if(maxpages == tempPageCount) {
										//alert('hideme!');
										$('#ajax_pagination').hide();
									}
								},
								complete: hideloading
							});
						return false;
					});

			 });
		};

	/** loadingImage function is used to show loading image until Ajax request complete */
	function loadingImage(){
		//first hide the text of the read more link and show the loading icon
		$("._ajaxpaging_loading").show();

	}

    /** hide the loading image */
    function hideloading(){
    	//then just hide the loading icon and show the link text
		$("._ajaxpaging_loading").hide();

    }

	// plugin defaults
	$.fn.ajaxpaging.defaults = {
		query: '',
		maxpage: 0
	};
})(jQuery);