joomla how to remove js

By default joomla have some default js. Some time we need to remove the default js. last week my friend asked me to remove mootools.js in his project i searched via the Best Friend (Google) and i got some idea. Here is the solution to remove mootools from joomla

$document =& JFactory::getDocument();
foreach ($document->_scripts as $key=>$val) {
if (stripos($key, 'mootools.js') !== false) {
unset($document->_scripts[$key]);
}
}

Similar way we can remove any js , just replace with 'mootools.js' with 'yourjsname'.