(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);
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;
}

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(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);

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);