Is this possible with Xthreads ?

[ZiNgA BuRgA]

Put in showthread template somewhere (preferably before </body>)

HTML Code

<script type="text/javascript"> <!-- window.open(<?=json_encode( {INSERT VARIABLE HERE} )?>); --> </script>

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Requires template conditionals.  Don't forget to replace {INSERT VARIABLE HERE} with the threadfield variable.