getCookie = function(id){
	var c = document.cookie.split('; ');
	for(var i=0 ; i<c.length ;i++){
		var cookieId = c[i].split('=')[0];
		var cookieValue = c[i].split('=')[1];
		if(id == cookieId){
			return cookieValue
		}
	}
	return null;
}

setMemoriedStyle = function(){
	var	styleID = 'medium'	
	var memoriedStyleID = getCookie('memoriedStyle');	
	if(memoriedStyleID != null){
		styleID = memoriedStyleID;
	}else{
		document.cookie='memoriedStyle='+ styleID +"; path=/";
	}
	setStyleSheets(styleID);
	return;
}

setStyleSheets = function(styleID){
	document.open();
	document.write('<link href="'+ styleID + '.css' + '" rel="stylesheet" type="text/css" media="screen,media" />')
	document.close();
	return;
}

changeFontSize = function(fontSizeID){
	document.cookie='memoriedStyle='+ fontSizeID +"; path=/";
	location.href = location;
	return;

}