function GenPopUnder()
{
if (CheckCookie()){
var myWin;
myWin= open('', 'displayWindow','width=600,height=300,status=no,toolbar=no,menubar=no');
// abre un nuevo documento
myWin.document.open();
myWin.blur();
window.focus();
// crea el documento
// se escriben todas las líneas que hagan falta para el cuerpo del documento
myWin.document.write("<s" + "cript>location.href='banner.php'</s" + "cript>");
// cierra el documento - (no se cierra la ventana!)
myWin.document.close();
}
}
function getCookieVal(offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
function GetCookie (name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
return getCookieVal (j);
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
return null;
}
function SetCookie (name, value) {
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
document.cookie = name + "=" + escape (value) + 
((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
"; path=/" +
((domain == null) ? "" : ("; domain=" + domain)) + 
((secure == true) ? "; secure" : "");
}
function CheckCookie() {
var bShow
var iShowPopUnder = GetCookie( 'popunder_counter' );
bShow = (iShowPopUnder < 1);
if (bShow) {
iShowPopUnder = 1;
SetCookie( 'popunder_counter' , iShowPopUnder);
}
return bShow;
}