var style_cookie_name = "beachway_style" ;
var style_cookie_duration = 300 ;

function switch_style ( css_title ) {
  var i, link_tag ;
  for (i = 0, link_tag = document.getElementsByTagName("link") ;
    i < link_tag.length ; i++ ) {
    if ((link_tag[i].rel.indexOf( "stylesheet" ) != -1) && link_tag[i].title) {
      link_tag[i].disabled = true ;
      if (link_tag[i].title == css_title) {
        link_tag[i].disabled = false ;
      }
    }
    set_cookie( style_cookie_name, css_title, style_cookie_duration, document.domain );
  }
}

function set_style_from_cookie(default_style) {
  var css_title = get_cookie( style_cookie_name );
  if (!css_title.length) {
    css_title = default_style;
  }
  if (css_title.length) {
    switch_style( css_title );
  }
}

function set_cookie ( cookie_name, cookie_value, lifespan_in_days, valid_domain ) {
    var domain_string = valid_domain ? ("; domain=" + valid_domain) : '' ;
    var cookie_string = cookie_name + "=" + encodeURIComponent( cookie_value ) + "; max-age=" + 60 * 60 * 24 * lifespan_in_days + "; path=/" + domain_string;
    document.cookie = cookie_string;
}

function get_cookie(c_name) {
  var i,x,y,ARRcookies=document.cookie.split(";");
  for (i=0;i<ARRcookies.length;i++) {
    x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));
    y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);
    x=x.replace(/^\s+|\s+$/g,"");
    if (x==c_name) {
      return unescape(y);
    }
  }
  return '';
}