NewWindow.prototype.overlay;
NewWindow.prototype.window;
NewWindow.prototype.theBody;
NewWindow.prototype.isIE6 = false;
NewWindow.prototype.opacity;

function NewWindow(params)
{
	var me = this;
	var overlayColor = (params.overlayColor) ? (params.overlayColor) : ("#000");
	var overlayOpacity = (params.overlayOpacity) ? (params.overlayOpacity) : (.75);
	this.opacity = overlayOpacity * 100;
	this.theBody = document.getElementsByTagName("body")[0];
	
	if (navigator.userAgent.indexOf("MSIE 6") > -1) this.isIE6 = true;
	
	if (params.id)
	{
		this.CreateWindowContainer(document.getElementById(params.id));
	}
	
	if (params.url)
	{
		
	}
	
	if (params.html)
	{
		
	}
	
	if (params.closeButton)
	{
		if (typeof(params.closeButton) == "string") params.closeButton = [params.closeButton];
		var closeButtonCount = params.closeButton.length;
		for (var closeButtonIndex = 0; closeButtonIndex < closeButtonCount; closeButtonIndex++)
		{
			var closeButton = document.getElementById(params.closeButton[closeButtonIndex]);
			closeButton.style.cursor = "pointer";
			closeButton.onclick = function()
			{
				me.close();
			}
		}
	}
	
	this.CreateOverlay(overlayColor, overlayOpacity);
	
}

NewWindow.prototype.CreateWindowContainer = function(windowNode)
{
	var shadowLevels = 5;
	windowNode = windowNode.cloneNode(true);
	var windowContainer = document.createElement("div");
	windowContainer.style.position = "fixed";
	if (this.isIE6) windowContainer.style.position = "absolute";
	windowContainer.style.left = "50%";
	windowContainer.style.top = "50%";
	windowContainer.style.zIndex = 1001;
	windowNode.style.display = "block";
	windowNode.style.position = "absolute";
	windowNode.style.left = "0";
	windowNode.style.top = "0";
	windowNode.style.zIndex = 1001 + shadowLevels;
	windowContainer.style.display = "none";
	windowContainer.appendChild(windowNode);
	windowContainer.style.visibility = "hidden";
	windowContainer.style.display = "block";
	
	this.window = windowContainer;
	this.theBody.insertBefore(windowContainer, this.theBody.childNodes[0]);
	
	var opacityInc = Math.floor(+this.opacity / shadowLevels);
	var shadowOpacity = +this.opacity;
	for (var shadowIndex = 0; shadowIndex < shadowLevels; shadowIndex++)
	{
		shadowOpacity -= opacityInc;
		var shadowNode = document.createElement("div");
		shadowNode.style.position = "absolute";
		shadowNode.style.zIndex = 1001 + shadowIndex;
		shadowNode.style.left = (shadowIndex + 1) + "px";
		shadowNode.style.top = (shadowIndex + 1) + "px";
		shadowNode.style.width = windowNode.offsetWidth + "px";
		shadowNode.style.height = windowNode.offsetHeight + "px";
		shadowNode.style.opacity = shadowOpacity / 100;
		shadowNode.style.filter = "alpha(opacity=" + shadowOpacity + ")";
		shadowNode.style.backgroundColor = "#000";
		windowContainer.appendChild(shadowNode);
	}
	
	windowContainer.style.marginLeft = (-1 * (windowNode.offsetWidth / 2)) + "px";
	windowContainer.style.marginTop = (-1 * (windowNode.offsetHeight / 2)) + "px";
	windowContainer.style.display = "none";
	windowContainer.style.visibility = "visible";
}

NewWindow.prototype.CreateOverlay = function(overlayColor, overlayOpacity)
{
	var me = this;
	var overlayDiv = document.createElement("div");
	overlayDiv.style.position = "fixed";
	if (this.isIE6 == true) overlayDiv.style.position = "absolute";
	overlayDiv.style.zIndex = 1000;
	overlayDiv.style.left = "0px";
	overlayDiv.style.top = "0px";
	overlayDiv.style.width = "100%";
	overlayDiv.style.height = "100%";
	overlayDiv.style.backgroundColor = overlayColor;
	overlayDiv.style.opacity = overlayOpacity;
	overlayDiv.style.filter = "alpha(opacity=" + (overlayOpacity * 100) + ")";
	overlayDiv.style.display = "none";
	overlayDiv.style.parent = this;
	
	overlayDiv.onclick = function()
	{
		me.close();	
	}
	
	this.overlay = overlayDiv;
	this.theBody.insertBefore(overlayDiv, this.theBody.childNodes[0]);
}

NewWindow.prototype.open = function()
{
	var overlayDiv = this.overlay;
	overlayDiv.style.display = "block";
	this.window.style.display = "block";
	
	if (this.isIE6 == true)
	{		
		if (document.documentElement.scrollHeight > overlayDiv.offsetHeight)
		{
			overlayDiv.style.height = document.documentElement.scrollHeight + "px";
		}
		
		if (document.documentElement.clientWidth > overlayDiv.offsetWidth)
		{
			overlayDiv.style.width = document.documentElement.clientWidth + "px";
		}
		
		if (overlayDiv.offsetHeight < this.theBody.offsetHeight)
		{
			overlayDiv.style.height = this.theBody.offsetHeight + "px";
		}
	}	
}

NewWindow.prototype.close = function()
{
	this.overlay.style.display = "none";
	this.window.style.display = "none";
	this.onWindowClose();
}

NewWindow.prototype.dispose = function()
{
	this.theBody.removeChild(this.overlay);
	this.theBody.removeChild(this.window);
}

NewWindow.prototype.onWindowClose = function(){}