var theWindow;

function openWindow(url, width, height, resizable, scrollbars)
{
	var left = screen.width/2 - width/2;
	var top = screen.height/2 - height/2;
	
	theWindow = window.open(url, "theWindow", "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top + ",resizable=" + resizable + ",scrollbars=" + scrollbars);
}

function demoBuy(buyLink)
{
	if (window.opener)
	{
		window.opener.location = buyLink;
	}
	else
	{//open a new window
		window.open(buyLink);
	}
	
	this.window.close();
}

function demoRegister(registerLink)
{
	if (window.opener)
	{
		window.opener.location = registerLink;
	}
	else
	{//open a new window
		window.open(registerLink);
	}
	
	this.window.close();
}

function offerRegister(registerLink)
{
	if (window.opener)
	{
		window.opener.location = registerLink;
	}
	else
	{//open a new window
		window.open(registerLink);
	}
	
	this.window.close();
}

function checkoutHelpPop()
{
	openWindow("/help/popups/checkout/",500,200,1,1);
	
	this.window.focus();
}