var doAlerts=false;
function changeSheets ( whichSheet )
{  
  set_cookie ( "textstylesize", whichSheet, 2011, 0, 0 );
  whichSheet=whichSheet-1;
  if(document.styleSheets){
    var c = document.styleSheets.length;
    if (doAlerts) alert('Change to Style '+(whichSheet+1));
    for(var i=0;i<c;i++){
      if(i!=whichSheet){
        document.styleSheets[i].disabled=true;
      }else{
        document.styleSheets[i].disabled=false;
      }
    }
  }
}

function set_cookie ( name, value, exp_y, exp_m, exp_d, path, domain, secure )
{
  var cookie_string = name + "=" + escape ( value );
  if ( exp_y ){
    var expires = new Date ( exp_y, exp_m, exp_d );
    cookie_string += "; expires=" + expires.toGMTString();
  }
  if ( path ) cookie_string += "; path=" + escape ( path );
  if ( domain ) cookie_string += "; domain=" + escape ( domain );
  if ( secure ) cookie_string += "; secure";
  document.cookie = cookie_string;
}

function get_cookie ( cookie_name )
{
  var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );

  if ( results )
    return ( unescape ( results[2] ) );
  else
    return null;
}

function use_cookie ( )
{
  if ( ! get_cookie ( "textstylesize" )){
  changeSheets(2)
  }
  else{
  var whichSheet = get_cookie ( "textstylesize" );
  changeSheets(whichSheet)
  }
}