function setShellBG()
{
    var shellEl = "";
    if ( document.getElementById("shell") != null )
    {
        shellEl = document.getElementById("shell");
        shellEl.style.background = '#000';
    } 
}


// addLoadEvent(setShellBG);
   
/* begin common cookie functions.  see http://techweb/javascript_commons/docs/cookies.html for documentation. */
/* Set cookie value */
function setCookie(name, value, escapeValue, expires, path, domain, secure) {

    var cookieToken = name + '=' + ((escapeValue) ?  escape(value) : value) + ((expires) ? '; expires=' + expires.toGMTString() : '') + ((path) ? '; path=' + path : '') + ((domain) ? '; domain=' + domain : '') + ((secure) ? '; secure' : '');
    document.cookie = cookieToken;

}

/* Get cookie value */
function getCookie(name) {
    var allCookies = document.cookie;
    
    var cookieName = name + "=";
    var start = allCookies.indexOf("; " + cookieName);
    
    if (start == -1) {
        start = allCookies.indexOf(cookieName);
        if (start != 0) return null;
    }
    else start += 2;
    
    var end = document.cookie.indexOf(";", start);
    if (end == -1) end = allCookies.length;
    
    return unescape(allCookies.substring(start + cookieName.length, end));
}

/* Delete a cookie */
function deleteCookie(name, path, domain) {
    var value = getCookie(name);
    if (value != null) document.cookie = name + '=' + ((path) ? '; path=' + path : '') + ((domain) ? '; domain=' + domain : '') + '; expires=Thu, 01-Jan-70 00:00:01 GMT';
    return value;
}

/* Test for cookie support */
function verifyCookieSafe() {
    setCookie('pingCookies', 'hello');
    if (getCookie('pingCookies')) return true;
    else return false;
}

/* end common cookie functions. */

/* begin text size widget */
function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() { 
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

window.onunload = function(e) {
    var title = getActiveStyleSheet();
    //var expiration = new Date();
    //var expDuration = expiration.getTime() + (365*24*60*60*1000);
    //expiration.setTime(expDuration);
    setCookie("style", title, false, "", "/", "", false);
}

var textPref = getCookie("style");
var title = textPref ? textPref : getPreferredStyleSheet();
setActiveStyleSheet(title);

/* end text size widget */