function PrintPreview(url){        
	window.onerror = PrintPreviewErrorHandler;
	gErrorUrl = url;
	var hWnd = window.open(url, "nsscouponprint", "menubar=yes,toolbar=yes,width=630,height=400,resizable=yes,scrollbars=yes");
	if (!hWnd.opener) hWnd.opener = self;
	if (hWnd.focus != null) hWnd.focus();
	gErrorUrl = "";
}

function PrintPreviewErrorHandler(){
	if (gErrorUrl != ""){
		location.href = gErrorUrl;
		return true;
	}else{
		return false;
	}
}