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1 1976 jones
 /*
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  *   '$RCSfile$'
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  *     Purpose: Default style sheet for KNB project web pages
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  *              Using this stylesheet rather than placing styles directly in
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  *              the KNB web documents allows us to globally change the
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  *              formatting styles of the entire site in one easy place.
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  *   Copyright: 2000 Regents of the University of California and the
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  *               National Center for Ecological Analysis and Synthesis
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  *     Authors: Matt Jones
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  *
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  *    '$Author$'
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  *      '$Date$'
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  *  '$Revision$'
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  *
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  * This program is free software; you can redistribute it and/or modify
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  * it under the terms of the GNU General Public License as published by
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  * the Free Software Foundation; either version 2 of the License, or
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  * (at your option) any later version.
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  *
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  * This program is distributed in the hope that it will be useful,
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  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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  * GNU General Public License for more details.
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  *
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  * You should have received a copy of the GNU General Public License
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  * along with this program; if not, write to the Free Software
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  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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  */
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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 * * * * * *  CONFIGURATION SETTINGS - EDIT THESE FOR YOUR ENVIRONMENT * * * *
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 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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35 3596 walbridge
/* loginStatus: Uses XHR request to check for current session login status */
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function loginStatus(){
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    var httpRequest = false;
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    try {
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          httpRequest = new XMLHttpRequest();
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    } catch (trymicrosoft) {
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        try {
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            httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
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        } catch (othermicrosoft) {
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            try {
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                httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
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            } catch (failed) {
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                request = null;
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            }
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        }
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    }
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    if (!httpRequest){
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        alert("no httpRequest object");
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        return false;
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    }
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    httpRequest.onreadystatechange = function() {
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        if(httpRequest.readyState == 4) {
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            if (httpRequest.status == 200) {
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                var response = httpRequest.responseText;
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                var login_block = document.getElementById('login_block');
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                if (response.indexOf("public") > 0) {
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                    login_block.innerHTML = '<a href="@cgi-prefix@/register-dataset.cgi?cfg=nceas&' +
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                                            'stage=loginform">Login</a>';
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                }
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                else
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                {
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                    login_block.innerHTML = '<a href="@cgi-prefix@/register-dataset.cgi?cfg=nceas&' +
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                                            'stage=logout">Logout</a>';
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                }
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            }
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        }
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    }
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    httpRequest.open("GET", "@servlet-path@?action=getloggedinuserinfo", true);
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    httpRequest.send(null);
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}