(function($) {
	$.extend({
		tablesorterPager: new function() {
			
			function updatePageDisplay(c) {
				var s = $(c.cssPageDisplay,c.container).val((c.page+1) + c.seperator + c.totalPages);	
			}
			
			function setPageSize(table,size) {
				var c = table.config;
				c.size = size;
				c.totalPages = Math.ceil(c.totalRows / c.size);
				moveToPage(table);
				fixPosition(table);
			}
			
			function fixPosition(table) {
				var c = table.config, o = $(table);
				if(o.offset) {
					c.container.css({
						top: o.offset().top + o.height() + 'px',
						position: 'absolute'
					});
				}
				c.pagerPositionSet = true;
			}
			
			function moveToFirstPage(table) {
				var c = table.config;
				c.page = 0;
				moveToPage(table);
			}
			
			function moveToLastPage(table) {
				var c = table.config;
				c.page = (c.totalPages-1);
				moveToPage(table);
			}
			
			function moveToNextPage(table) {
				var c = table.config;
				c.page++;
				if(c.page >= (c.totalPages-1)) {
					c.page = (c.totalPages-1);
				}
				moveToPage(table);
			}
			
			function moveToPrevPage(table) {
				var c = table.config;
				c.page--;
				if(c.page <= 0) {
					c.page = 0;
				}
				moveToPage(table);
			}
						
			
			function moveToPage(table) {
				var c = table.config;
				if(c.page < 0 || c.page > (c.totalPages-1)) {
					c.page = 0;
				}
				
				renderTable(table,c.rowsCopy);
			}
			
			function renderTable(table,rows) {
				
				var c = table.config;

				if(jQuery.cookie && c.totalPages != 1){
					if(!c.pageInitialized){
						table.config.pageInitialized = true;
						table.config.pageCookieName = c.pageCookieName || 'tablesorterPage'+c.totalRows;
						c.page = parseInt(jQuery.cookie(table.config.pageCookieName) || 0);
						if(c.page >= c.totalPages) c.page = 0;
					}else{
						jQuery.cookie(c.pageCookieName, c.page);
					}
				}

				var l = rows.length;
				var s = (c.page * c.size);
				var e = (s + c.size);
				if(e > rows.length ) {
					e = rows.length;
				}
				var tableBody = $('tbody:first',table).empty();
				
				for(var i = s; i < e; i++) {
					
					tableBody.append(rows[i]);
				}
				
				if(!c.pagerPositionSet && c.positionFixed) fixPosition(table,tableBody);
				
				updatePageDisplay(c);
			}
			
			this.appender = function(table,rows) {
				
				var c = table.config;
				
				c.rowsCopy = rows;
				c.totalRows = rows.length;
				c.totalPages = Math.ceil(c.totalRows / c.size);
				c.page = 0

				renderTable(table,rows);
			};
			
			this.defaults = {
				size: 20,
				offset: 0,
				page: 0,
				totalRows: 0,
				totalPages: 0,
				container: ".tablesorterPager",
				cssNext: '.next',
				cssPrev: '.prev',
				cssFirst: '.first',
				cssLast: '.last',
				cssPageDisplay: '.pagedisplay',
				cssPageSize: '.pagesize',
				seperator: "/",
				positionFixed: true,
				appender: this.appender
			};
			
			this.construct = function(settings) {
				
				return this.each(function() {	
					
					config = $.extend(this.config, $.tablesorterPager.defaults, settings);

					var table = this;
					var pager = $(config.container);

					if($(".pagesize", pager)) config.size = parseInt($(".pagesize",pager).val());

					$(this).trigger("appendCache");

					if(config.totalPages==1) pager.hide();

					$(config.cssFirst,pager).click(function() {
						moveToFirstPage(table);
						return false;
					});
					$(config.cssNext,pager).click(function() {
						moveToNextPage(table);
						return false;
					});
					$(config.cssPrev,pager).click(function() {
						moveToPrevPage(table);
						return false;
					});
					$(config.cssLast,pager).click(function() {
						moveToLastPage(table);
						return false;
					});
					$(config.cssPageSize,pager).change(function() {
						setPageSize(table,parseInt($(this).val()));
						return false;
					});
				});
			};
			
		}
	});
	// extend plugin scope
	$.fn.extend({
        tablesorterPager: $.tablesorterPager.construct
	});
	
})(jQuery);