/* [jd] 12/12/2008 http://www.alistapart.com/articles/alternate/ 
$$('div').each(
    function(s)
    {
      height = s.style.height.replace("px","");
      if( height < 15 && s.style.overflow != "hidden" )
        s.style.overflow = "hidden";
    }
  );


*/ 

var cookieColor = '';

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 setActiveStyleSheet(title) 
{
  cookieColor = title;
  var title = 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;
   }
 }
 
 changeAdditionalImages(title);

 createCookie("STYLE", title, 365);
}

function changeAdditionalImages(title)
{
  
  $$('img').each(
  function(name, index) 
  {
    if( name.src.search("color1") > 0 )
      name.src = name.src.replace(/color1/, title);
    
    if( name.src.search("color2") > 0 )
      name.src = name.src.replace(/color2/, title);
    
    if( name.src.search("color3") > 0 )
      name.src = name.src.replace(/color3/, title);
    
  });
 
}

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.onload = function(e) {
  var cookie = readCookie("STYLE");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("STYLE", title, 365);
}

var cookie = readCookie("STYLE");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);