function open_resource( purl )
{
	param = "height=300, width=300, menubar=no, status=no, titlebar=no, toolbar=no";
	Upper_url = purl.toUpperCase();
	
	if ( Upper_url.indexOf('PDF') >= 0)
	{
		window.open( purl, "_parent");
	}
	else
	{
			window.open( purl, "_parent");
	}
}