var sLastFontUsed = "small";
var sLastAligned = "left";

function setActiveStyleSheet(title) {
  var i, a, main;
  
  if(title == "large" && sLastAligned == "left")
	  title = "largel";
  else if(title == "large" && sLastAligned == "justified")
	  title = "largej";
  else if(title == "small" && sLastAligned == "left")
  	  title = "smalll";
  else if(title == "small" && sLastAligned == "justified")
  	  title = "smallj";
  
  if(title == "unjustify" && sLastFontUsed == "small")
	  title = "smalll";
  else if(title == "unjustify" && sLastFontUsed == "large")
	  title = "largel";
  else if(title == "justify" && sLastFontUsed == "small")
  	  title = "smallj";
  else if(title == "justify" && sLastFontUsed == "large")
  	  title = "largej";

  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)
	  {
		  if(title == "largej" || title == "largel")
		  	sLastFontUsed = "large";
		  else
		    sLastFontUsed = "small";
          
		  if(title == "largej" || title == "smallj")
  			sLastAligned = "justified";
		  else
		    sLastAligned = "left";
			
		  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;
}

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("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  if(title == "largej" || title == "largel")
	  sLastFontUsed = "large";
  else
      sLastFontUsed = "small";
  
  if(title == "largej" || title == "smallj")
	sLastAligned = "justified";
  else
    sLastAligned = "left";

  setActiveStyleSheet(title);
}

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

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
if(title == "largej" || title == "largel")
  sLastFontUsed = "large";
else
  sLastFontUsed = "small";

if(title == "largej" || title == "smallj")
  sLastAligned = "justified";
else
  sLastAligned = "left";
			
setActiveStyleSheet(title);


function winPop(url)
{
	window.open(url);
	return false;
}