How to prevent memory leak when using Jquery - datatables (ie7)?

I am using datatables in my Javascript application but when rendering the DOM, memory of IE grows up like anything. Memory doesn't come down even after clearing the datatatables element from DOM.

I have multiple tabs and i remove the LI part of the DOM to remove the tab which host the datatable.

If I dont render the DOM via datatables, the utilized memory is very less..

var functionLoad=(function (datasource){
        var oTable = $("#" + elementId).dataTable({})
});

Can someone let me know the best way to prevent memory leaks when using IE7?

Is there a way to remove reference of table element?