Apply pagination on table data

<script type="text/javascript" charset="utf-8">

            $.fn.dataTableExt.oPagination.iTweenTime = 100;

            $.fn.dataTableExt.oPagination.scrolling = {
                "fnInit": function ( oSettings, fnCallbackDraw )
                {
                    var nPaging = oSettings.anFeatures.p;

                    /* Store the next and previous elements in the oSettings object as they can be very
                     * usful for automation - particularly testing
                     */
                    oSettings.nPrevious = document.createElement( 'div' );
                    oSettings.nNext = document.createElement( 'div' );

                    if ( oSettings.sTableId !== '' )
                    {
                        nPaging.setAttribute( 'id', oSettings.sTableId+'_paginate' );
                        oSettings.nPrevious.setAttribute( 'id', oSettings.sTableId+'_previous' );
                        oSettings.nNext.setAttribute( 'id', oSettings.sTableId+'_next' );
                    }

                    oSettings.nPrevious.className = "paginate_disabled_previous";
                    oSettings.nNext.className = "paginate_disabled_next";

                    oSettings.nPrevious.title = oSettings.oLanguage.oPaginate.sPrevious;
                    oSettings.nNext.title = oSettings.oLanguage.oPaginate.sNext;

                    nPaging.appendChild( oSettings.nPrevious );
                    nPaging.appendChild( oSettings.nNext );
                    $(nPaging).insertAfter( oSettings.nTable );

                    $(oSettings.nPrevious).click( function() {
                        /* Disallow paging event during a current paging event */
                        if ( typeof oSettings.iPagingLoopStart != 'undefined' && oSettings.iPagingLoopStart != -1 )
                        {
                            return;
                        }

                        oSettings.iPagingLoopStart = oSettings._iDisplayStart;
                        oSettings.iPagingEnd = oSettings._iDisplayStart - oSettings._iDisplayLength;

                        /* Correct for underrun */
                        if ( oSettings.iPagingEnd < 0 )
                        {
                          oSettings.iPagingEnd = 0;
                        }

                        var iTween = $.fn.dataTableExt.oPagination.iTweenTime;
                        var innerLoop = function () {
                            if ( oSettings.iPagingLoopStart > oSettings.iPagingEnd ) {
                                oSettings.iPagingLoopStart--;
                                oSettings._iDisplayStart = oSettings.iPagingLoopStart;
                                fnCallbackDraw( oSettings );
                                setTimeout( function() { innerLoop(); }, iTween );
                            } else {
                                oSettings.iPagingLoopStart = -1;
                            }
                        };
                        innerLoop();
                    } );

                    $(oSettings.nNext).click( function() {
                        /* Disallow paging event during a current paging event */
                        if ( typeof oSettings.iPagingLoopStart != 'undefined' && oSettings.iPagingLoopStart != -1 )
                        {
                            return;
                        }

                        oSettings.iPagingLoopStart = oSettings._iDisplayStart;

                        /* Make sure we are not over running the display array */
                        if ( oSettings._iDisplayStart + oSettings._iDisplayLength < oSettings.fnRecordsDisplay() )
                        {
                            oSettings.iPagingEnd = oSettings._iDisplayStart + oSettings._iDisplayLength;
                        }

                        var iTween = $.fn.dataTableExt.oPagination.iTweenTime;
                        var innerLoop = function () {
                            if ( oSettings.iPagingLoopStart < oSettings.iPagingEnd ) {
                                oSettings.iPagingLoopStart++;
                                oSettings._iDisplayStart = oSettings.iPagingLoopStart;
                                fnCallbackDraw( oSettings );
                                setTimeout( function() { innerLoop(); }, iTween );
                            } else {
                                oSettings.iPagingLoopStart = -1;
                            }
                        };
                        innerLoop();
                    } );

                    /* Take the brutal approach to cancelling text selection */
                    $(oSettings.nPrevious).bind( 'selectstart', function () { return false; } );
                    $(oSettings.nNext).bind( 'selectstart', function () { return false; } );
                },

                "fnUpdate": function ( oSettings, fnCallbackDraw )
                {
                    if ( !oSettings.anFeatures.p )
                    {
                        return;
                    }

                    oSettings.nPrevious.className =
                        ( oSettings._iDisplayStart === 0 ) ?
                        "paginate_disabled_previous" : "paginate_enabled_previous";

                    oSettings.nNext.className =
                        ( oSettings.fnDisplayEnd() == oSettings.fnRecordsDisplay() ) ?
                        "paginate_disabled_next" : "paginate_enabled_next";
                }
            }
            jQuery.fn.dataTableExt.aTypes.push(
                function ( sData )
                {
                    var sValidChars = "0123456789-,";
                    var Char;
                    var bDecimal = false;

                    /* Check the numeric part */
                    for ( i=0 ; i<sData.length ; i++ )
                    {
                        Char = sData.charAt(i);
                        if (sValidChars.indexOf(Char) == -1)
                        {
                            return null;
                        }

                        /* Only allowed one decimal place... */
                        if ( Char == "," )
                        {
                            if ( bDecimal )
                            {
                                return null;
                            }
                            bDecimal = true;
                        }
                    }

                    return 'numeric-comma';
                }
            );

            jQuery.fn.dataTableExt.oSort['numeric-comma-asc']  = function(a,b) {
                var x = (a == "-") ? 0 : a.replace( /,/, "." );
                var y = (b == "-") ? 0 : b.replace( /,/, "." );
                x = parseFloat( x );
                y = parseFloat( y );
                return ((x < y) ? -1 : ((x > y) ?  1 : 0));
            };

            jQuery.fn.dataTableExt.oSort['numeric-comma-desc'] = function(a,b) {
                var x = (a == "-") ? 0 : a.replace( /,/, "." );
                var y = (b == "-") ? 0 : b.replace( /,/, "." );
                x = parseFloat( x );
                y = parseFloat( y );
                return ((x < y) ?  1 : ((x > y) ? -1 : 0));
            };


            $(document).ready(function() {
                $('#preactivitymanagementtable').dataTable( {
                        "sPaginationType": "scrolling",
                        "bAutoWidth": false,

                } );

            } );

        </script>