var fontSizeUnit = "%";
var perOrder = 30;
var defaultSize = 100;
var ckName = "FSCc";
var ckDays = 30;
var ckPath = "/"
var fsCK = GetCookie( ckName );

if ( fsCK == null ){
var currentSize = defaultSize;
}
else{
var currentSize = eval( fsCK );
}

document.writeln( '<style type="text/css">' );
document.write( 'body{font-size:' + currentSize + fontSizeUnit+ '}' );
document.writeln( '</style>' );

function fsc( CMD ){

 if ( CMD == "larger" ){
  var newSize = Number( currentSize + perOrder );
  SetCookie( ckName , newSize );
 }

 if ( CMD == "smaller" ){
  if ( currentSize != perOrder ){
   var newSize = Number( currentSize - perOrder );
   SetCookie( ckName , newSize );
  }
  else{
   var newSize = Number( currentSize );
  }
 }

 if ( CMD == "default" ){
  DeleteCookie( ckName );
 }

 location.reload();
}

function SetCookie( name , value ){
 var dobj = new Date();
 dobj.setTime(dobj.getTime() + 24 * 60 * 60 * ckDays * 1000);
 var expiryDate = dobj.toGMTString();
 document.cookie = name + '=' + escape(value) + ';expires=' + expiryDate + ';path=' + ckPath;
}

function GetCookie (name){
 var arg  = name + "=";
 var alen = arg.length;
 var clen = document.cookie.length;
 var i = 0;
 while (i < clen){
  var j = i + alen;
  if (document.cookie.substring(i, j) == arg)
  return getCookieVal (j);
  i = document.cookie.indexOf(" ", i) + 1;
  if (i == 0) break;
 }
 return null;
}

function getCookieVal (offset){
 var endstr = document.cookie.indexOf (";", offset);
 if (endstr == -1)
 endstr = document.cookie.length;
 return unescape(document.cookie.substring(offset,endstr));
}

function DeleteCookie(name){
 if (GetCookie(name)){
  document.cookie = name + '=' +
  '; expires=Thu, 01-Jan-70 00:00:01 GMT;path='+ckPath;
 }
}