var MinCookieName = 'ObjMinimize';
var MinCookieDays = 30;
var CVal = readCookie(MinCookieName);

function objMinimize(objid, butid) {
	var obj = document.getElementById(objid);
	chngShowHideBut(butid);
	
	if (!readCookie(MinCookieName)) {
		createCookie(MinCookieName, '', MinCookieDays);
	}
	
	if (obj.style.display == '') {
		obj.style.display = 'none';
		addHideId(objid);
	} else {
		obj.style.display = '';
		removeHideId(objid);
	}
}

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 ca = document.cookie.split(';');
	var nameEQ = name + "=";
	for(var i=0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1, c.length); //delete spaces
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
	}
	return null;
}

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

function addHideId(objid) {
	if (CVal) {
		var ids = CVal.split(',');
		var test = 0;
		for (var i=0; i < ids.length; i++) {
			if (ids[i] == objid) test++;
		}
		if (!test) CVal += ',' + objid;
	} else 
		CVal = objid;
	createCookie(MinCookieName, CVal, MinCookieDays);
}

function removeHideId(objid) {
	if (CVal) {
		var ids = CVal.split(',');
		CVal = '';
		for (var i=0; i < ids.length; i++) {
			if (ids[i] != objid) CVal += (CVal ? ',' : '') + ids[i];
		}
	}
	createCookie(MinCookieName, CVal, MinCookieDays);
}

function chkHideState(objid, butid) {
	if (CVal) {
		var re = new RegExp('' + objid + '','gi');
		if (CVal.match(re)) {
			var obj = document.getElementById(objid);
			var but = document.getElementById(butid);
			obj.style.display = 'none';
			but.className = 'offon';
			but.innerHTML='[покажи]';
		}
	}
}

function chngShowHideBut(butid) {
	var but = document.getElementById(butid);
	
	if (but.className == 'onoff') {
		but.className = 'offon';
		but.innerHTML='[покажи]';
	} else {
		but.className='onoff';
		but.innerHTML='[скрий]';
	}
}