_include_initialize_wproofreader_option_using_autosearch_server

<script>
    window.WEBSPELLCHECKER_CONFIG = {
		autoSearch: true,
		lang: 'en_US', // set the default language 
		...
	};
</script>

<script type="text/javascript" src="http(s)://your_host_name/wscservice/wscbundle/wscbundle.js"></script>