function event_attach( event , func )
{
	if ( window.attachEvent )
	{
		window.attachEvent( event , func );
	}
	else
	{
		if ( ( typeof( func ) ).toLowerCase() != 'function' )
		{
			return;
		}
		if ( ( typeof( document.event_handlers ) ).toLowerCase() == 'undefined' )
		{
			document.event_handlers = new Array();
		}
		if ( ( typeof( document.event_handlers[ event ] ) ).toLowerCase() == 'undefined' )
		{
			document.event_handlers[ event ] = new Array();
		}
		if ( ( typeof( eval( 'window.' + event ) ) ).toLowerCase() != 'function' )
		{
			eval( 'window.' + event + ' = function () { if ( ( typeof( document.event_handlers[ \'' + event + '\' ] ) ).toLowerCase() != \'undefined\' ) { for ( i = document.event_handlers[ \'' + event + '\' ].length - 1 ; i >= 0  ; i-- ) { document.event_handlers[ \'' + event + '\' ][ i ](); } } } ' );
		}
		document.event_handlers[ event ][ document.event_handlers[ event ].length ] = func;
	}
}

function setCookie( name, value, expires, path, domain, secure )
{
	 var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
	document.cookie = curCookie;
}
function getCookie( name )
{
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf( "; " + prefix );
	if ( begin == -1 )
	{
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	}
	else
	{
		begin += 2;
	}
	var end = document.cookie.indexOf( ";", begin );
	if ( end == -1 )
	{
		end = dc.length;
	}
	return unescape(dc.substring(begin + prefix.length, end));
}
function deleteCookie( name, path, domain )
{
	var value = getCookie( name );
	if ( value != null )
	{
		document.cookie = name + "=" + 
			((path) ? "; path=" + path : "") +
			((domain) ? "; domain=" + domain : "") +
			"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
	return value;
}

var defaultFontSize = 100;
var minFontSize = 80;
var maxFontSize = 140;
function loadFontSize ()
{
	temp_font_size = parseInt( getCookie ( "vogelbusch_font_size" ) );
	if ( isNaN(temp_font_size) || ( temp_font_size < minFontSize ) ) {
		current_font_size = defaultFontSize;
	}
	else {
		current_font_size = temp_font_size;
	}
	setCurrentFontSize ();
}
function setCurrentFontSize()
{
	if ( document.body )
	{
		document.body.style.fontSize = current_font_size + '%';
		var datum = new Date(2099,12,31);
		setCookie( "vogelbusch_font_size" , current_font_size , datum );
	}
}
function setFontSize( size )
{
	if ( size == 0 ) {
		current_font_size = defaultFontSize;
		setCurrentFontSize();
	}
	else if ( size == 1 ) {
		if ( current_font_size > minFontSize ) {
			current_font_size = current_font_size - 10;
			setCurrentFontSize();
		}
	}
	else if ( size == 2 ) {
		if ( current_font_size < maxFontSize ) {
			current_font_size = current_font_size + 10;
			setCurrentFontSize();
		}
	}
}

var current_font_size = 0;
if ( ( typeof( loadFontSize ) ).toLowerCase() != 'undefined' ) { event_attach( 'onload' , loadFontSize ); }