(function($) {
	$.extend({
		tablesorterPager: new function() {
			
			function updatePageDisplay(table) {
				var c = table.config;

				
				var phtml = "";
				if (c.totalPages <10){
					for(var i=0; i < c.totalPages; i++) {
						phtml += "<span>" + (i+1) + "</span>";
					}
				} else {
						var desde = c.page - 5;
						var hasta = c.page + 5;
						
						if (desde < 0) desde = 0;
						if (hasta > c.totalPages) hasta = c.totalPages;
						
						if (desde - hasta < 10) hasta = desde + 10;
						
						if (desde > 1)
							phtml += "<span>...</span>";
							 
						for(var i=desde; i < hasta; i++) {
							phtml += "<span>" + (i+1) + "</span>";
						}						
						
						if (hasta < c.totalPages-1)
							phtml += "<span>...</span>";
					
				}
				$(c.cssPageDisplay,c.container).html(phtml);
				
				$('#pager .pagedisplay span').each(function(i) {
					if($(this).text() - 1 == c.page){
						$(this).addClass('selected');
					}
				
					$(this).click(function() {
						//if($.tablePager.params.lastElement) {
							//$($.tablePager.params.lastElement).removeClass('selected');
						//}
						//$.tablePager.params.offset = i * $.tablePager.params.pageSize;
						//$.tablePager.params.lastElement = this;
						
						//$.tablePager.renderTable();
						//$(this).addClass('selected')
						if ($(this).text() == "...")
							return false;
							
						c.page = $(this).text() - 1;
						$(this).addClass('selected');
						moveToPage(table);
						
						
					});
				});
			}
			
			function setPageSize(table,size) {
				var c = table.config;
				c.size = size;
				c.totalPages = Math.ceil(c.totalRows / c.size);
				c.pagerPositionSet = false;
				moveToPage(table);
				fixPosition(table);
			}
			
			function fixPosition(table) {
				var c = table.config;
				if(!c.pagerPositionSet && c.positionFixed) {
					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;
				}
				updatePageDisplay(table);
				renderTable(table,c.rowsCopy);
			}
			
			function renderTable(table,rows) {
				
				var c = table.config;
				var l = rows.length;
				var s = (c.page * c.size);
				var e = (s + c.size);
				if(e > rows.length ) {
					e = rows.length;
				}
				
				
				var tableBody = $(table.tBodies[0]);
				
				// clear the table body
				
				$.tablesorter.clearTableBody(table);
				
				for(var i = s; i < e; i++) {
					
					//tableBody.append(rows[i]);
					
					var o = rows[i];
					var l = o.length;
					for(var j=0; j < l; j++) {
						
						tableBody[0].appendChild(o[j]);

					}
				}
				
				fixPosition(table,tableBody);
				
				$(table).trigger("applyWidgets");
				
				if( c.page >= c.totalPages ) {
        			moveToLastPage(table);
				}
				
				updatePageDisplay(table);
			}
			
			this.appender = function(table,rows) {
				
				var c = table.config;
				
				c.rowsCopy = rows;
				c.totalRows = rows.length;
				c.totalPages = Math.ceil(c.totalRows / c.size);
				
				renderTable(table,rows);
			};
			
			this.defaults = {
				size: 10,
				offset: 0,
				page: 0,
				totalRows: 0,
				totalPages: 0,
				container: null,
				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, pager = config.container;
				
					$(this).trigger("appendCache");
					
					config.size = parseInt($(".pagesize",pager).val());
					
					$(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);