How to close opened popup windows in IE by using javascript

function ApplyValues() {


         var o = new Object();

         o.companyname = document.getElementById("company").value;
         o.address = document.getElementById("address").value;
         o.city = document.getElementById("city").value;
         o.state = document.getElementById("state").value;
         o.country = document.getElementById("country").value;
         o.phone = document.getElementById("phone").value;
         o.email = document.getElementById("email").value;
         o.firstName = document.getElementById("firstName").value;

        window.returnValue = o;
        window.close();
}

 <table><tbody><tr><td width="198" bgcolor="#DBDBDB"><a href="#" onclick="javascript:return ApplyValues()" class="menuItem">Apply</a><br>

</br></td></tr></tbody></table>