// JScript File


function Cookie(document, name, hours, path, domain, secure)
{
    this.$document = document;
    this.$name = name;
    if (hours) 
        this.$expiration = new Date((new Date()).getTime() + hours*3600000); 
    else this.$expiration = null;
    if (path) this.$path = path; else this.$path = null;
    if (domain) this.$domain = domain; else this.$domain = null;
    if (secure) this.$secure = true; else this.$secure = false;  
}


Cookie.prototype.store = function()
{
    var cookieval = "";
    for(var prop in this)
    {
        if ((prop.charAt(0) == '$') || ((typeof this[prop]) == 'function'))
            continue;
        if (cookieval != "") cookieval += '&';
        cookieval += prop + ':' + escape(this[prop]);
    }
   
   var cookie = this.$name + '=' + cookieval;
   if (this.$expiration)
        cookie += '; expires=' + this.$expiration.toGMTString();
    if (this.$path)
        cookie += '; path=' + this.$path;
    if (this.$domain)
        cookie += '; domain=' + this.$domain;
    if (this.$secure)
        cookie += '; secure';
    this.$document.cookie = cookie;
}    

Cookie.prototype.load = function()
{
    var allcookies = this.$document.cookie;
   if (allcookies == "") return false;
   
   var start = allcookies.indexOf(this.$name + '=');
   if (start == -1) return false;
   start += this.$name.length + 1;
   var end = allcookies.indexOf(';', start);
   if (end == -1) end = allcookies.length;
   var cookieval = allcookies.substring(start,end);
   
   var a = cookieval.split('&');
   for (var i=0; i < a.length; i++)
        a[i] = a[i].split(':');
   for (var i = 0; i < a.length; i++){
        this[a[i][0]] = unescape(a[i][1]);
   }
   
   return true;
}

Cookie.prototype.remove = function(){
    var cookie;
   cookie = this.$name + '=';
   if (this.$path) cookie += '; path=' + this.$path;
   if (this.$domain) cookie += '; domain=' + this.$domain;
   cookie += '; expires=Fri, 02-Jan-1970 00:00:00 GMT';
   
   this.$document.cookie = cookie;
} 

var visitordata = new Cookie(document, "csspreference", 240);
    if (!visitordata.load()){
        //alert('CSS preference not found! Defaulting to on.');
        visitordata.css = "on";
    }
   else
   {
   //alert('Loaded CSS preference.');
   } 
    visitordata.store(); 
   //visitordata.css = "on";
   //document.write(visitordata.css);
   if (visitordata.css == "on"){
   //     changeSheets(1);
   }
   else
   {
        changeSheets(2);
   }
   
   
   var doAlerts=true;
function changeSheets(whichSheet){
if (whichSheet == 1){
    visitordata.css = "on";
   //alert("CSS has been turned on");  
}
else
{
    visitordata.css = "off";
   //alert("CSS has been turned off"); 
}
visitordata.store(); 
  whichSheet=whichSheet-1;
  if(document.styleSheets){
    var c = document.styleSheets.length;
    for(var i=0;i<c;i++){
      if(i!=whichSheet){
        document.styleSheets[i].disabled=true;
      }else{
        document.styleSheets[i].disabled=false;
      }
    }
  }
}