if (navigator.cookieEnabled == 0) {
  alert("You need to enable cookies for this site to load properly!");
}


function delete_cookie () {
	var cookie_date = new Date ( );  // current date & time
	cookie_date.setTime ( cookie_date.getTime() - 1 );
	document.cookie = "pcng_session=; expires=" + cookie_date.toGMTString();
	document.cookie = "pcng_adm_session=; expires=" + cookie_date.toGMTString();
	alert('You have just logged out')
}

function doUnload()
{
 if (window.event.clientX < 0 && window.event.clientY < 0)
 {
   alert("Window is closed.");
 }
}