Doesn't work :

If I paste the Piwik code juste before </body> in main.tpl, it gives me an error on displaying pages of the forum :

Fatal error: Smarty error: [in default/main.tpl line 62]: syntax error: unrecognized tag 'var' (Smarty_Compiler.class.php, line 590) in ..../modules/smarty/Smarty.class.php on line 1093

In index.php, after ?>, it was slow but it worked without any problem.