//
// Miscellaneous functions for Williams-Mystic site
//

//
// write css for background images for home page
//
function write_home_images() {
  //
  // random photo + logo + background colors
  //
  var randbkgs = new Array(
    new Array("img/home/photo1a.jpg","#162227","img/home/photo1b.jpg","#576c89","img/home/logo1.gif"),
    new Array("img/home/photo2a.jpg","#889fd2","img/home/photo2b.jpg","#89a3d4","img/home/logo2.gif"),
    new Array("img/home/photo3a.jpg","#efc04a","img/home/photo3b.jpg","#b6b199","img/home/logo3.gif"),
    new Array("img/home/photo4a.jpg","#8cb63d","img/home/photo4b.jpg","#8bad93","img/home/logo4.gif"),
    new Array("img/home/photo5a.jpg","#3d556d","img/home/photo5b.jpg","#6882a8","img/home/logo5.gif"),
    new Array("img/home/photo6a.jpg","#954f27","img/home/photo6b.jpg","#8f8089","img/home/logo6.gif"),
    new Array("img/home/photo7a.jpg","#b6b5b6","img/home/photo7b.jpg","#9dadc8","img/home/logo7.gif"),
    new Array("img/home/photo8a.jpg","#32589d","img/home/photo8b.jpg","#6384bd","img/home/logo8.gif"),
    new Array("img/home/photo9a.jpg","#abc8f6","img/home/photo9b.jpg","#98b5e4","img/home/logo9.gif"),
    new Array("img/home/photo0a.jpg","#39474e","img/home/photo0b.jpg","#667c9a","img/home/logo0.gif")
  );
  var nbkg = Math.floor(Math.random()*randbkgs.length);    // pick one at random

  // write CSS for backgrounds
  document.writeln("<style type='text/css'>");
  document.writeln("#divphoto1 { background-color: "+randbkgs[nbkg][1]+"; background-image: url("+randbkgs[nbkg][0]+") }");
  document.writeln("#divphoto2 { background-color: "+randbkgs[nbkg][3]+"; background-image: url("+randbkgs[nbkg][2]+") }");
  document.writeln("#divlogo { background-image: url("+randbkgs[nbkg][4]+") }");
  document.writeln("</style>");
}




//
// function sets className of even- and odd-numbered rows in a table
//  tableid = id of table
//  uses Dreamweaver function MM_findObj()
//
function evenoddrows (tableid) {
  var tableobj = MM_findObj(tableid);
  if (tableobj) {
    if (tableobj.rows) {
      var i, rows = tableobj.rows;
      for (i = 0; i < rows.length; i++) {
        if (i % 2 == 0) {
          rows[i].className = "odd";
        }
        else {
          rows[i].className = "even";
        }
      }
    }
  }
}


//
// open slideshow in a new window
// call like this:
//  <a href="/galleries/about_all.html" onclick="return openslideshow('about')" target="_blank">...</a>
//
function openslideshow (ssname) {
  var newwindow = window.open('/williamsmystic/galleries/'+ssname+'.html', ssname, 'width=440,height=427,resizable=yes,scrollbars=no,toolbar=no,menubar=no,location=no,status=no');
  if (newwindow) {
    if (window.focus)
      newwindow.focus();
    return false;
  }
  return true; // unsuccessful
}


//
// random quotes/factoids for sidebars
//
var factoids = new Array(
  "&quot;If ever anyone decided to sit down and invent the ideal learning experience, WM is what he or she would come up with.  Choosing to go to Mystic is one of the best decisions I've ever made in my life.&quot;<br />-&nbsp;F95,&nbsp;Mills",
  "&quot;It was probably the richest learning opportunity I had in college because of the diversity of topics, depth of engagement, teachers, classmates, and exciting, hands-on classroom atmosphere.&quot;<br />-&nbsp;S00,&nbsp;Middlebury",
  "&quot;They should know that they will find what they're looking for and worlds beyond what they can imagine.... It's one semester that lasts a lifetime... I don't know that you could ever communicate the potential of the experience completely to prospective students. No one would believe you or it would sound boastful&quot;<br />-&nbsp;S90,&nbsp;Wellesley",
  "&quot;The reflections are never-ending!  There is no better way to describe Williams-Mystic than: wonderful, inspiring, invigorating, sleepless, awakening, and simply marvelous.&quot;<br />-&nbsp;F00,&nbsp;Tufts",
  "&quot;Never in my life have I been surrounded by a group of professors and friends who have given so much of their time, energy, and spirit to a wonderful program like this.  You must hear this all the time, but I just don't have the words to tell all of you what this has meant to me, so all I can say is thank you, thank you.&quot;<br />-&nbsp;S03,&nbsp;Brown",
  "&quot;My semester at Mystic was the best learning experience I had throughout college.  The approach the faculty takes combined with a wonderful environment was unforgettable.&quot;<br />-&nbsp;F82,&nbsp;Bates",
  "&quot;It might be in Connecticut, but it takes you as far away as you can imagine.  It opened my eyes to an entirely different side of the world.&quot;<br />-&nbsp;F02,&nbsp;Mount&nbsp;Holyoke",
  "&quot;The friendships made then have become deeper over the years &ndash; I value these people more from the 25 years since, then any of us could have guessed at the time.  That semester set the foundation of lifelong friendships as well as understanding of all things maritime.&quot;<br />-&nbsp;S78,&nbsp;Wellesley",
  "&quot;Do it! Do it! Love it!  Love it!  As wonderful as it seems from the literature, it's about 50,000,000 times better and was a fabulous way to spend a semester.&quot;<br />-&nbsp;F01,&nbsp;Mary&nbsp;Washington",
  "&quot;Absolutely once-in-a-lifetime experience.  You can go to Europe anytime.  Enjoy Mystic now!  You'll never be exposed to such a unique educational experience again.&quot;<br />-&nbsp;S95,&nbsp;Smith",
  "&quot;My semester was the best learning experience I had throughout college.  The opportunity to live in small communities, be independent, and strive for 'my best' impacted my life very deeply.&quot;<br />-&nbsp;S83,&nbsp;Bates",
  "&quot;You MUST do it!  It will challenge you intellectually, socially, and physically.  It will forever change the way you think about the world around you.&quot;<br />-&nbsp;F92,&nbsp;Wellesley",
  "Student to faculty ratio: 3:1; Ratio of students to boats in Mystic Seaport's collection 1:19",
  "Average number of miles logged on our offshore voyage: 800; on the Pacific Coast seminar: 1,000; on the Mississippi Delta seminar 500. Percent of students who will go on or in the Atlantic, Pacific, and Gulf Coasts during their semester: 100%"
);

// write out the current factoid
function write_factoid () {
  // pick one at random
  //var nfact = Math.floor(Math.random()*factoids.length);

  // get counter from cookie
  var nfact = get_factcount() % factoids.length;

  // write it out
  document.writeln(factoids[nfact]);
}

// pull counter from cookie, then increment it and save it again
function get_factcount() {
  var factCount = 0;
  var cookies = document.cookie.split(';');
  for (i = 0; i < cookies.length; i++) {
    if (cookies[i].indexOf('factCount') > -1) { // found count in cookie
      cookieparts = cookies[i].split('=')
      factCount = parseInt(cookieparts[1]);
      if (factCount < 0)
        factCount = 0;
    }
  }

  // increment and save back to cookie
  var newFactCount = (factCount+1) % 10000; // wrap at 10000
  var expire = new Date ();
  expire.setTime (expire.getTime() + (10*365*24*60*60*1000)); //expires in 10 years
  expire = expire.toGMTString();
  var str = 'factCount='+newFactCount+'; path=/; expires='+expire;
  document.cookie=str;

  return factCount;
}