function showmap(map,img) {
	thismap = document.getElementById('map');
	thisframe = document.getElementById('navlinks');
	createCookie('map',map,2);
	
	switch(map)
	{
		case 'ca':
			thismap.src = img;
			thismap.useMap = '#canadamap';
			thisframe.innerHTML = "";
			for (i=0; i < ca.length; i++) {
				thisframe.innerHTML = thisframe.innerHTML + '<DIV class="' + ca[i][1] + '"><A href="' + ca[i][2] + '">' + ca[i][0] + '</A></DIV>';
			}
			break;
		case 'mx':
			thismap.src = img;
			thismap.useMap = '#mx_map';
			thisframe.innerHTML = "";
			for (i=0; i < mx.length; i++) {
				thisframe.innerHTML = thisframe.innerHTML + '<DIV class="' + mx[i][1] + '"><A href="' + mx[i][2] + '">' + mx[i][0] + '</A></DIV>';
			}
			break;
		default:
			thismap.src = img;
			thismap.useMap = '#usmap';
			thisframe.innerHTML = "";
			for (i=0; i < us.length; i++) {
				thisframe.innerHTML = thisframe.innerHTML + '<DIV class="' + us[i][1] + '"><A href="' + us[i][2] + '">' + us[i][0] + '</A></DIV>';
			}
			break;
	}
}

function breakFrames() {
	if (self.parent.frames.length != 0) {
		self.parent.location = document.location;
	}
}		

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 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;
}

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

function mapSaved()
{
	var mapcookie = readCookie('map');
	switch (mapcookie)
	{
		case 'ca' :
			showmap('ca','templates/green/images/map-canada.gif');
			break;
		case 'mx' :
			showmap('mx','templates/green/images/mx_map.gif');
			break;
		default :
			showmap('us','templates/green/images/map-us.gif');
	}
}

function changeOldReviewsDisplayState(campgroundID,campgroundName) {
    var currentDiv    = document.getElementById("cg" + campgroundID + 'OldReviews');
    var currentAnchor = document.getElementById("cg" + campgroundID + 'ChangeLink');

    if (currentDiv != null & currentAnchor != null) {
        if (currentDiv.className == 'hidden') {
            currentDiv.className = 'displayed';
            currentAnchor.innerHTML = "Hide older reviews for " + campgroundName;
        } else {
            currentDiv.className = 'hidden';
            currentAnchor.innerHTML = "Display older reviews for " + campgroundName;
        }
    }
}