CodingForums.com - Convert a script in popup popunder

Hi

I have a script for popup but i want convert this script popunder
Is that possible ? thx for your help

Code:

<script type="text/javascript">// <![CDATA[

var cookieinfo;

function CookieExist(CookieName) { cookieinfo = document.cookie; if (cookieinfo.indexOf(CookieName) == -1) { return false; } else { return true; } }

function SetCookie(CookieName,CookieArgs,CookieExpire) { document.cookie = CookieName + "=" + CookieArgs + ";" + "expires=" + CookieExpire; }

function GetCookie(CookieName) { if ( CookieExist(CookieName) ){ d = cookieinfo.indexOf(CookieName) + CookieName.length + 1; f = cookieinfo.indexOf(";",d); if ( f == -1) { f = cookieinfo.length; } return (cookieinfo.substring(d,f)); } else { return ("0"); } }

// ]]></script>

<script type="text/javascript">// <![CDATA[

var pup=0;

function popup ()

{

if(pup===0)

{

pup=1;

if(GetCookie("deja_clique")==1)

{

return;

}

else

{

SetCookie("deja_clique",1,"");



var popun=String

      

popun[0]="http://www.yahoo.com";

popun[1]="http://www.facebook.com";

popun[2]="http://www.google.com";





resultat = Math.floor(Math.random() * 3);



window.open(popun[resultat], "","toolbar=1,location=1,directories=1,status=1,scrollbars=1,resizable=1,copyhistory=1,menuBar=1,width=30000,height=30000");

window.focus();

popup.blur();

}

}

}

document.onclick=popup;

// ]]></script>