// JavaScript Document

function setAlertBannerCookie(value)
{
  var the_date = new Date(2010, 01, 01);
  document.cookie = "MIS_AlertBanner="+value+"; expires="+the_date.toUTCString();
};
function getAlertBannerCookie()
{
  var results = document.cookie.match ( '(^|;) ?MIS_AlertBanner=([^;]*)(;|$)' );

  if ( results )
    return ( unescape ( results[2] ) );
  else
    return null;

};
function removeAlertBanner(){
	//document.getElementById("alertBanner").innerHTML = "";
	document.getElementById("alertBanner").className = "alertBannerHidden";
};
 
function showAlertBanner(){
	/*
	var alertCookie = getAlertBannerCookie();
	switch(alertCookie){ 
		case null: showFullAlertBanner(); break;
		case "2": showMaybeAlertBanner(); break;
	}*/
}

function showFullAlertBanner(){ 
	document.getElementById("alertBanner").innerHTML = "After looking at this website, please help the Exploratorium Microscope Imaging Station team improve its design: <br/><a href='http://www.surveyshare.com/survey/take/?sid=57916' target='_blank' onClick='removeAlertBanner(); setAlertBannerCookie(1); return true;'><B>Sure.</B></a>&nbsp;|&nbsp;<a href='#' onClick='removeAlertBanner(); setAlertBannerCookie(0); return false;'><B>No Thanks.</B></a>&nbsp;|&nbsp;<a href='#' onClick='showMaybeAlertBanner(); setAlertBannerCookie(2); return false;'><B>Maybe Later</B></a>";
	document.getElementById("alertBanner").className = "alertBannerVisible";
	
}

function showMaybeAlertBanner(){
	document.getElementById("alertBanner").innerHTML = "When you are ready to take the survey, please click here: <a href='http://www.surveyshare.com/survey/take/?sid=57916'target='_blank'  onClick='removeAlertBanner(); setAlertBannerCookie(1);'><B>Take Survey</B></a>&nbsp;|&nbsp;<a href='#' onClick='removeAlertBanner(); setAlertBannerCookie(0); return false;'><B>No Thanks</B></a>";
	document.getElementById("alertBanner").className = "alertBannerMaybe";
}