//read query string
var args = getArgs();

//if no query parameter, check for existing cookie
if (args.returnpage == null)
{
checkCookie();
}
//if return query is not properly formed, check for existing cookie
else if (args.returnpage != "true")
{
checkCookie();
}

//preload hover images
h1= new Image;
h1.src = "grfx/maps/portlandhover.jpg";
h2= new Image;
h2.src = "grfx/maps/seattlehover.jpg";
h3= new Image;
h3.src = "grfx/maps/boisehover.jpg";



function revealLink()
{
if (args.returnpage != null || args.returnpage == "true")
{
	var loc = Get_Cookie("doitnwlocation");
	//If cookie exists
	if (loc != null)
	{
	document.getElementById("forgetDiv").style.visibility = "visible";
	}
}
}

function forgetRegion()
{
	Delete_Cookie("doitnwlocation", "/", "");
	document.getElementById("forgetDiv").style.visibility = "hidden";
}



//retrieves query string arguments from URL
function getArgs() {
	var args = new Object();
	var query = location.search.substring(1);
	var pairs = query.split("&");
	for(var i = 0; i < pairs.length; i++) {
	var pos = pairs[i].indexOf('=');
	if (pos == -1) continue;
		var argname = pairs[i].substring(0,pos);
		var value = pairs[i].substring(pos+1);
		args[argname] = unescape(value);
	}
	return args;
}

//reveals hotspot on hover
function hoverHotSpot(mydiv, myimg)
{
	document.getElementById(mydiv).style.backgroundImage = "url('grfx/maps/" + myimg +"')";
	document.getElementById(mydiv).className = "doitnw_map_hotspot_over";
}

function outHotSpot(mydiv)
{
document.getElementById(mydiv).style.backgroundImage = "none";
document.getElementById(mydiv).className = "doitnw_map_hotspot";
}

function mapClick(i)
{
var box = document.getElementById("rememberBox");
if (box != null && box.checked == true)
{
Set_Cookie("doitnwlocation", i, "", "/", "", "");
}
gotoLocation(i);
}

function checkCookie()
{

	//Retrieve location cookie
	var loc = Get_Cookie("doitnwlocation");
	//If cookie exists

	if (loc != null)
	{
		gotoLocation(loc);
	}
}

function gotoLocation(loc)
{
		if (loc == "0")
		{
			window.location = "seattle/";
		}

		else if (loc == "1")
		{
			window.location = "http://www.diningoutnorthwest.com";
		}

		else if (loc == "2")
		{
			window.location = "idaho/";
		}
		else if (loc == "3")
		{
			window.location = "spokane/";
		}

}







function Set_Cookie( name, value, expires, path, domain, secure )
{
// set time, it's in milliseconds
var today = new Date();
today.setTime( today.getTime() );

/*
if the expires variable is set, make the correct
expires time, the current script below will set
it for x number of days, to make it for hours,
delete * 24, for minutes, delete * 60 * 24
*/
if ( expires )
{
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date( today.getTime() + (expires) );

document.cookie = name + "=" +escape( value ) +
( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
( ( path ) ? ";path=" + path : "" ) +
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}

// this fixes an issue with the old method, ambiguous values
// with this test document.cookie.indexOf( name + "=" );
function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f

	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );


		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}
// this deletes the cookie when called
function Delete_Cookie( name, path, domain ) 
{
if ( Get_Cookie( name ) )
	document.cookie = name + "=" + ( ( path ) ? ";path=" + path : "") + ( ( domain ) ? ";domain=" + domain : "" ) +
";expires=Thu, 01-Jan-2001 00:00:01 GMT";
}