function setActiveStyleSheet(title) {
	var i, a, newtitle;
	if(title.indexOf('_') == -1) {
		newtitle="norm_small";
		for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
			if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
				if(!a.disabled) {
					var arr = a.getAttribute("title").split('_');
					if ((title.indexOf("norm") > -1) || (title.indexOf("right") > -1)) {
						newtitle = title + "_" + arr[1];
					} else {
						newtitle = arr[0] + "_" + 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") == newtitle) 
				{
					a.disabled = false;
				}
			}
		}
	}
	else
	{
		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;
			}
		}
	}
}

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");
	}
  }
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) 
  {
	if(a.getAttribute("title") == "norm_small")
	{
		a.disabled = false;
		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 showImages(divId) {
   document.getElementById(divId).style.visibility = "visible";
}

function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=1,width=500,height=500,left = 262,top = 184');");
}
window.onload = function(e) {
  //showImages('divAdSideBar');
  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);