JavaScript function to call another link in background applicable to Cognos too

<div id="bgFrame"></div>

<script type="text/javascript">

setTimeout(prepareiFrame,100);

function prepareiFrame() {

bgifrm = document.createElement("IFRAME");

document.getElementById("bgFrame").appendChild(bgifrm );

bgifrm.style.display="none";

bgifrm.setAttribute("src", " http://10.11.11.181:5050/Default.aspx?UserName=Cognos");

}

 </script>