function setActiveStyleSheet(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 getActiveStyleSheet() {
	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 getPreferredStyleSheet() {
	var i, a;
	for (i = 0; (a = document.getElementsByTagName("link")[i]); i++) {
		if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title")) {
			return a.getAttribute("title");
		}
	}
	return null;
}
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.onunload = function (e) {
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);

}

iniciaSS();

//alteracoes...
function aumentaFonte() {
	var title = getActiveStyleSheet();
	var title_array = title.split("-");
	var tam = title_array[1];
	tam++;
	if (tam >= 1 && tam <= 4) {
		setActiveStyleSheet("tam-" + tam);
	}
}
function diminuiFonte() {
	var title = getActiveStyleSheet();
	var title_array = title.split("-");
	var tam = title_array[1];
	tam--;
	if (tam >= 1 && tam <= 4) {
		setActiveStyleSheet("tam-" + tam);
	}
}
function ativaAltoContraste() {
	return;
	var link_ac, link_normal;
	link_normal = document.getElementById("cores");
	link_ac = document.getElementById("cores_ac");
	link_normal.disabled = true;
	link_ac.disabled = false;
}
function desativaAltoContraste() {
	return;
	var link_ac, link_normal;
	link_normal = document.getElementById("cores");
	link_ac = document.getElementById("cores_ac");
	link_normal.disabled = false;
	link_ac.disabled = true;
}
function isAltoContrasteAtivado() {
	return false;
	return !document.getElementById("cores_ac").disabled;
}
function iniciaSS() {
	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
}