function setFont( title ) {
	var i, a, main;
	for( i = 0; ( a = document.getElementsByTagName( "link" )[i] ); i++ ) {
		if( a.getAttribute( "rel" ).indexOf( "style" ) != -1 && a.getAttribute( "title" ) ) {
			a.disabled = true;
			if( a.getAttribute( "title" ) == title ) a.disabled = false;
		}
	}
}

function getFont() {
	var i, a;
	for( i = 0; ( a = document.getElementsByTagName( "link" )[i] ); i++ ) {
		if( a.getAttribute( "rel" ).indexOf( "style" ) != -1 && a.getAttribute( "title" ) && !a.disabled ) return a.getAttribute( "title" );
	}
	return null;
}

function defaultFont() {
	return 'medium';
}

function createCookie( name, value, days ) {
	if( days ) {
		var date = new Date();
		date.setTime( date.getTime() + ( days * 24 * 60 * 60 * 1000 ) );
		var expires = "; expires=" + date.toGMTString();
	}
	else expires = "";
	document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie( name ) {
	var nameEQ = name + "=";
	var ca = document.cookie.split( ';' );
	for( var i = 0 ;i < ca.length; i++ ) {
		var c = ca[i];
		while( c.charAt( 0 )==' ' ) c = c.substring( 1, c.length );
		if( c.indexOf( nameEQ ) == 0 ) return c.substring( nameEQ.length, c.length );
	}
	return null;
}

window.onload = function( e ) {
	var cookie = readCookie( "style" );
	var title = cookie ? cookie : defaultFont();
	setFont( title );
}

window.onunload = function( e ) {
	var title = getFont();
	createCookie( "style", title, 365 );
}

var cookie = readCookie( "style" );
var title = cookie ? cookie : defaultFont();
if( title == 'null' ) {
	title = defaultFont();
}

setFont( title );