function decrypt_email(etxt)
{
		var dtxt = "";
		for (i = 0; i < etxt.length; i++)
			dtxt += String.fromCharCode(etxt.charCodeAt(i) - 1);
        return dtxt;
}

function popup_email(etxt)
{
		var dtxt = decrypt_email(etxt);

		if (confirm("The email you are looking for is: " + dtxt + "\n\n"+
					"Click OK to send an email using your computer's default email settings.\n\n"+
					"Click Cancel to hide this message."))
			location = "mailto:" + dtxt;
}

function show_email()
{
        var name = "";
        if (arguments.length == 1)
        {
                var email = decrypt_email(arguments[0]);
                var username = email.substring(0, email.indexOf('@'));
                var domain = email.substring(email.indexOf('@')+1);
                name = username+"<img src='http://library.brooklyn.cuny.edu/graphics/at_sign.gif' border='0'/>"+domain;
        }
        else
                name = arguments[1];
        document.write("<a href='javascript:popup_email(\""+arguments[0]+"\")'>"+name+"</a>");
}