//check if the crippled window exists
var crip = null;

function NewPopupWindow(url)
{
	if((crip == null) || (crip.closed)) 
	{
		crip = window.open(url, 'popupwindow', 'toolbar=yes,menubar=no,scrollbars=yes,width=640,height=480,resizable=yes');
		crip.focus();
	}
	else
	{
		crip.navigate(url);
		crip.focus();
	}
}
function CloseOldWindow()
{
	if(crip != null) 
	{
		crip.close();
	}
}

function NewBigPopupWindow(url)
{
	if((crip == null) || (crip.closed)) 
	{
		crip = window.open(url, 'popupwindow', 'toolbar=yes,menubar=no,scrollbars=yes,width=800,height=400,resizable=yes');
		crip.focus();
	}
	else
	{
		crip.navigate(url);
		crip.focus();
	}
}
function CloseOldWindow()
{
	if(crip != null) 
	{
		crip.close();
	}
}

function PreviewWindow()
{
	if((crip == null) || (crip.closed)) 
	{
		crip = window.open('http://www.beta.cdw.com', 'PreviewWindow', 'toolbar=yes,menubar=no,scrollbars=yes,width=800,height=600,resizable=yes');
		crip.focus();
	}
	else
	{
		crip.navigate(url);
		crip.focus();
	}
}
function CloseOldWindow()
{
	if(crip != null) 
	{
		crip.close();
	}
}