// expire old login cookies
if (document.cookie.indexOf("email=") != -1) {
  document.cookie="email=; path=/; expires=Mon, 1-Jan-2001 0:00:00 GMT;";
  if (document.cookie.indexOf("gAcc=") != -1)
    document.cookie="gAcc=; path=/; expires=Mon, 1-Jan-2001 0:00:00 GMT;";
  if (document.cookie.indexOf("eAcc=") != -1)
    document.cookie="eAcc=; path=/; expires=Mon, 1-Jan-2001 0:00:00 GMT;";
  if (document.cookie.indexOf("iAcc=") != -1)
    document.cookie="iAcc=; path=/; expires=Mon, 1-Jan-2001 0:00:00 GMT;";
  if (document.cookie.indexOf("nAcc=") != -1)
    document.cookie="nAcc=; path=/; expires=Mon, 1-Jan-2001 0:00:00 GMT;";
}
if (document.cookie.indexOf("UCARLOGIN=") != -1)
  document.cookie="UCARLOGIN=; path=/; expires=Mon, 1-Jan-2001 0:00:00 GMT;";
function loadLogin()
{
  var loginDiv,loggedInDiv;
  var loggedIn;

  loggedIn=false;
  if (document.cookie.length > 0 && document.cookie.indexOf("duser=") >= 0)
    loggedIn=true;

  if (document.layers) {
    loginDiv=document.layers["loginLayer"];
    var url=""+location;
    if (url.indexOf("https") == 0)
	url=url.substr(20,32768);
    else
	url=url.substr(19,32768);
    loginDiv.document.write("<form action=\"https://dss.ucar.edu/cgi-bin/login\" method=\"post\"><span class=\"NNlcapital\">E</span><span class=\"NNllower\">MAIL:</span>&nbsp;<input type=\"text\" name=\"email\" id=\"email\" size=\"10\">&nbsp;&nbsp;<span class=\"NNlcapital\">P</span><span class=\"NNllower\">ASSWORD:</span>&nbsp;<input type=\"password\" name=\"passwd\" id=\"passwd\" size=\"8\"><input type=\"hidden\" name=\"do\" value=\"login\"><input type=\"hidden\" name=\"url\" value=\""+url+"\">&nbsp;&nbsp;<input type=\"image\" src=\"/images/login.gif\" width=\"54\" height=\"19\" border=\"0\" align=\"absmiddle\">&nbsp;&nbsp;&nbsp;&nbsp;<a href=\"https://dss.ucar.edu/cgi-bin/login?passwd=forgot\" class=\"Nulogin\">Forgot Password?</a>&nbsp;&nbsp;<a href=\"https://dss.ucar.edu/cgi-bin/login\" class=\"Nulogin\">Free Registration</a>&nbsp;&nbsp;<a href=\"#\" onClick=javascript:popNewWindow(\"lq\",450,350,\"scrollbars=yes,location=no,toolbar=no\",\"center\",\"middle\",\"http://dss.ucar.edu/html/reg_help.html\") class=\"Nulogin\">Do I have to register?</a></form>");
    loginDiv.document.close();
    loggedInDiv=document.layers["loggedInLayer"];
    var user="";
    if (document.cookie.indexOf("duser=") >= 0) {
	user=document.cookie.substr(document.cookie.indexOf("duser=")+6,32768);
	if (user.indexOf(":") >= 0)
	  user=user.substr(0,user.indexOf(":"));
	else if (user.indexOf(";") >= 0)
	  user=user.substr(0,user.indexOf(";"));
    }
    loggedInDiv.document.write("<span class=\"wcapital\">H</span><span class=\"wlower\">ELLO </span><span class=\"wcapital\">"+user+"</span>&nbsp;&nbsp;<a href=\"https://dss.ucar.edu/cgi-bin/login?do=edit&url="+location.pathname+"\" class=\"Nulogin\">edit profile</a>&nbsp;&nbsp;<a href=\"/cgi-bin/login?do=logout\" class=\"Nulogin\">logout</a>");
    loggedInDiv.document.close();
    if (loggedIn) {
	loginDiv.visibility="hide";
	loggedInDiv.visibility="show";
    }
    else {
	loginDiv.visibility="show";
	loggedInDiv.visibility="hide";
    }
  }
  else {
    loginDiv=document.getElementById("loginDiv");
    loggedInDiv=document.getElementById("loggedInDiv");
    if (loggedIn) {
	loginDiv.style.visibility="hidden";
	loggedInDiv.style.visibility="visible";
    }
    else {
	loginDiv.style.visibility="visible";
	loggedInDiv.style.visibility="hidden";
    }

//    if (navigator.appName == "Netscape") {
//	loginDiv.style.top=(parseInt(loginDiv.style.top)-5)+"px";
//	loggedInDiv.style.top=(parseInt(loggedInDiv.style.top)-7)+"px";
//    }
//    else if (navigator.userAgent.indexOf("Opera") != -1) {
//	loginDiv.style.top-=16;
//	loggedInDiv.style.top-=16;
//    }
  }
}