var activeStyle, sheetCnt = 5;

var cookie = getCookie("activeStyle");

if (cookie) ssheet(cookie);

else activeStyle = 1;

function ssheet(n) {

	if (!document.styleSheets) alert("Tento prohl?e? nepoporuje p?ep?n?n? styl? pomoc? JavaScriptu. \nPravd?podobn? na to m? n?jakou vlastn? funkci.");

	else {

		var undef,i,s,st,ti;

		if (n=='cycle') {

			activeStyle++;

			if (activeStyle>sheetCnt) activeStyle=1;

			}

		else activeStyle = n;

		st = 'Styl'+activeStyle;

		for (i=0; i<document.styleSheets.length; i++) {

			s = document.styleSheets[i];

			if (s.owningElement) ti = s.owningElement.title;

			else ti = s.title;

			if (ti != 'StylTisk') {

				if ( (!n) || (ti!='' && ti!=undef && ti!=st) ) s.disabled = true;

				else s.disabled=false;

				}

			else s.disabled=false;

			}

		updateCookie("activeStyle",activeStyle,14);

		}

	}



function updateCookie(name,value,days) {

	var ex = new Date();

	ex = new Date(ex.getTime() + 1000 * 60 * 60 * 24 * days);

	setCookie(name, value, ex, '/');

	}



function setCookie(cookieName, cookieValue, expires, path, domain, secure) {

	document.cookie = escape(cookieName) + '=' + escape(cookieValue)

		+ (expires ? '; EXPIRES=' + expires.toGMTString() : '')

		+ (path ? '; PATH=' + path : '')

		+ (domain ? '; DOMAIN=' + domain : '')

		+ (secure ? '; SECURE' : '');

	}



function getCookie(cookieName) {

	var cookieValue = null;

	if (document.cookie) {

		var posName = document.cookie.indexOf(escape(cookieName) + '=');

		if (posName!=-1) {

			var posValue = posName + (escape(cookieName) + '=').length;

			var endPos = document.cookie.indexOf(';', posValue);

			if (endPos!=-1) cookieValue = unescape(document.cookie.substring(posValue,endPos));

			else cookieValue = unescape(document.cookie.substring(posValue));

			}

		}

	return cookieValue;

	}