How to prevent another ajax call when hiding/showing oTable Column

NaunihalMaurya

I am using below method to hide/show the oTable column

function fnHide(iCol) {

/* Get the DataTables object again - this is not a recreation, just a get of the object */
var oTable = $('#companies').dataTable();
//var bVis = oTable.fnSettings().aoColumns[iCol].bVisible;
oTable.fnSetColumnVis(iCol, false);

}

function fnShow(iCol) {

/* Get the DataTables object again - this is not a recreation, just a get of the object */
var oTable = $('#companies').dataTable();
//var bVis = oTable.fnSettings().aoColumns[iCol].bVisible;
oTable.fnSetColumnVis(iCol, true);

}

Its hide/show that column but again it make ajax call to server side.
Number of hiding/showing columns makes that numbers of ajax call.
Please help to prevent ajax call when hiding/showing the column with above function