Use Heredoc to Save Script and Register it.

yii_clientscript_heredoc.php

$script = <<<EOB
  var data = :data;
  $('#treeview').treeview({data: %s});
  $('#treeview').on('nodeSelected', function(e, node){/* */});
EOB;

$script = sprintf($script, json_encode($treeview));
Yii::app()->clientScript->registerScript('loadTree', $script, CClientScript::POS_READY);