// ########################################################################################
// Copyright Nextive.com
// ########################################################################################
//
var parentURL = "";
var timerID = "";


function gradient(id, level)
{
	var box = document.getElementById(id);
	box.style.opacity = level;
	box.style.MozOpacity = level;
	box.style.KhtmlOpacity = level;
	box.style.filter = "alpha(opacity=" + level * 100 + ")";
	
	if(level > 0.01)
	{
		box.style.display="block";
	}
	else
	{
		box.style.display="none";
	}
	return;
}

function fadeout(id) 
{
	var level = document.getElementById(id).style.opacity;
	while(level > 0)
	{
		setTimeout( "gradient('" + id + "'," + level + ")", ((1-level)* 500) + 10);
		level -= 0.01;
	}
}

function fadein(id, max) 
{
	var level = 0.01;
	while(level <= max)
	{
		setTimeout( "gradient('" + id + "'," + level + ")", (level* 1000) + 10);
		level += 0.01;
	}
}

function showWidget(u, p, widgetURL)
{	
	parentURL = document.location.href;	

	document.getElementById("widgetFrame").src = widgetURL + "?u=" + u + "&p=" + p + "&establishmentURL=" + encodeURI(parentURL);
	gradient("filter", 0);
	fadein("filter", 0.7);
	
	gradient("widget", 0);
	fadein("widget", 1);
	
	timerID = setInterval("checkShouldCloseWidget();" , 500);
}

function checkShouldCloseWidget()
{	
	var loc = document.location.hash;

	if(loc.indexOf("#widgetClosed") != -1)
	{
		if(timerID != "")
		{
			clearInterval(timerID);
			timerID = "";
		}	
		
		closeWidget();
		document.location.href = parentURL;		
	}
}

function closeWidget()
{
	fadeout("filter");
	fadeout("widget");
}