function hide_for_one_hour(){
  createCookie("eurocor", "hide"); document.getElementById("container_eurocor").style.visibility = 'hidden';
}
function createCookie(name,value) {
  var date = new Date(); date.setTime(date.getTime()+(3600*1000)); var expires = "; expires="+date.toGMTString(); document.cookie = name+"="+value+expires+"; path=/";
}