gtmetrix suggesting it to me. i tried so much but not yet working.
$vm_mainframe->addScript( $mosConfig_live_site .'/components/'. VM_COMPONENT_NAME .'/js/extjs2/yui-utilities.js');
$vm_mainframe->addScript( $mosConfig_live_site .'/components/'. VM_COMPONENT_NAME .'/js/extjs2/ext-yui-adapter.js');
$vm_mainframe->addScript( $mosConfig_live_site .'/components/'. VM_COMPONENT_NAME .'/js/extjs2/ext-all.js');
i also added async option to it, searched but not getting how to fix it.
i'm using joomla 1.5 and this script are loading from module mod_vm_multidispaly
Thanks,
Rahul.