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")) {
			if((title=="white" || title=="black") && (a.getAttribute("title")=="white" || a.getAttribute("title")=="black")){
			  a.disabled = true;
			  if(a.getAttribute("title") == title) a.disabled = false;
			}
			if((title=="small" || title=="normal" || title=="big") && (a.getAttribute("title")=="small" || a.getAttribute("title")=="normal" || a.getAttribute("title")=="big")){
			  a.disabled = true;
			  if(a.getAttribute("title") == title) a.disabled = false;
			}
		}
	}
}


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

function getPreferredStyleSheet(title) {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if((title=="bgcolor") && (a.getAttribute("title")=="white" || a.getAttribute("title")=="black")){
	    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title") ) {
				return a.getAttribute("title");
	  	}
	  }
		if((title=="textsize") && (a.getAttribute("title")=="small" || a.getAttribute("title")=="normal" || a.getAttribute("title")=="big")){
	    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;
}

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

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

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

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