function consultar(nombre) {
  var buscamos = nombre + "=";
  if (document.cookie.length > 0) {
    i = document.cookie.indexOf(buscamos);
    if (i != -1) {
      i += buscamos.length;
      j = document.cookie.indexOf(";", i);
      if (j == -1)
        j = document.cookie.length;
      return unescape(document.cookie.substring(i,j));
    }}}

function setcookie(name,value){
cookiestring=name+"="+value
//+";EXPIRES="+duration;
document.cookie=cookiestring;

}



function see_pool()
{
if (document.cookie=="")
{setcookie("pool","true");
win=window.open('http://www.tech-marketresearch.com/pag_transito/trans_visel_home.html','pool','width=600,height=400,scrollbars=yes');
win.blur();
window.focus();}
else
{
//Encuesta ya realizada
}
}