function cookiecutter() {
var date = new Date();
date.setTime(date.getTime()+(24*60*60*1000));
var expires = "; expires="+date.toGMTString();
document.cookie = 'twitaway=hide'+expires+"; path=/";
}

function hidepromo() {
var name = 'twitaway';
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(name) == 0) return true;
}
return false;
}

function toggle_visibility(id)
{
var e = document.getElementById(id);
if(e.style.display == 'none')
e.style.display = 'block';
else
e.style.display = 'none';
cookiecutter();
return false;
}