// This script based on Paul Snowden's work described on A List Apart
//  <http://www.alistapart.com/stories/alternate/>
// Certain modifications (setFontSize and related) by Eric Meyer
//  <http://www.meyerweb.com/eric/>
// Function: setActiveStyleSheet altered  by Dartmouth College, 10/16/03
//  to check for NN 7.01 browser

function setActiveStyleSheet(title) {
  var i, a, main;
  if (title) {
    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;
        	if (title=='screen-version' && window.navigator.userAgent.indexOf ('Netscape/7.0') != -1)
        		window.location.href = window.location.href;
        	}
      }
    }
  }
}

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;
}

// function createCookie(name,value,days) {
//   if (days) {
//     var date = new Date();
//     date.setTime(date.getTime()+(days*24*60*60*1000));
//     var expires = '; expires='+date.toGMTString();
//   }
//   else expires = '';
//   document.cookie = name+'='+value+expires+'; path=/';
// }

// function readCookie(name) {
//   var nameEQ = name + '=';
//   var ca = document.cookie.split(';');
//   for(var i=0;i < ca.length;i++) {
//     var c = ca[i];
//     while (c.charAt(0)==' ') c = c.substring(1,c.length);
//     if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
//   }
//   return null;
// }

// function eraseCookie(name) {
// 	createCookie(name,'',-1);
// }

// function setFontSize(fontVal) {
// 	var fontSet = document.getElementById('fontSet');
// 	var docBase = new Array(); docBase = document.getElementsByTagName('body');
// 	if (!fontVal) {fontVal = document.getElementById('fontSet').value;}
// 	var docSize = fontVal+'px';
// 	createCookie('meyerweb-size', fontVal, 365);
// 	docBase[0].style.fontSize = docSize;
// 	if (fontSet) {fontSet.value = fontVal;}
// }

// window.onload = function(e) {
//   var cookie = readCookie('meyerweb-style');
//   var title = cookie ? cookie : getPreferredStyleSheet();
//   setActiveStyleSheet(title);
//   var cookie2 = readCookie('meyerweb-size');
//   if (cookie2) {setFontSize(cookie2);}
// }

// window.onunload = function(e) {
//   var title = getActiveStyleSheet();
//   createCookie('meyerweb-style', title, 365);
// }

//    var cookie = readCookie('meyerweb-style');
//    var title = cookie ? cookie : getPreferredStyleSheet();
//    setActiveStyleSheet(title);
//    var cookie2 = readCookie('meyerweb-size');
//    if (cookie2) {setFontSize(cookie2);}