function wielkosc(rozmiar, tag, tag2, tag3, tag4, tag5) {
	
	document.cookie="wielkosc_cz="+rozmiar;
	
	if(document.getElementById(tag)!=null)
	{
		document.getElementById(tag).style['fontSize'] = rozmiar;	
	}
	
	if(document.getElementById(tag2)!=null)
	{
		document.getElementById(tag2).style['fontSize'] = rozmiar;	
	}
	if(document.getElementById(tag3)!=null)
	{
		document.getElementById(tag3).style['fontSize'] = rozmiar;
	}
	if(document.getElementById(tag4)!=null)
	{
		document.getElementById(tag4).style['fontSize'] = rozmiar;
	}
	if(document.getElementById(tag5)!=null)
	{
		document.getElementById(tag5).style['fontSize'] = rozmiar;
	}
}

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;
}