function changeFontSize( size )
{    
    if( size == 'normal' )
    {
        document.body.style.fontSize = '62.5%';
        eraseCookie( 'fontSizeFrum' );
        createCookie( 'fontSizeFrum', 'normal', 1 );        
    }
    else if( size == 'larger' )
    {
        document.body.style.fontSize = '80%';
        eraseCookie( 'fontSizeFrum' );
        createCookie( 'fontSizeFrum', 'larger', 1 );
    }
    else if( size == 'largest' )
    {
        document.body.style.fontSize = '100%';
        eraseCookie( 'fontSizeFrum' );
        createCookie( 'fontSizeFrum', 'largest', 1 );
    }
}

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 var 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;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}