<cfset languageCaptions = []>
<cfset ArrayAppend(languageCaptions, "Deutsch")>
<cfset ArrayAppend(languageCaptions, "English</script>")>

<script type="text/javascript">
    var a = [];

    <cfloop array="#languageCaptions#" index="languageCaption">
        <cfoutput>a.push('#EncodeForJavaScript(languageCaption)#');</cfoutput>
    </cfloop>

    // do something with a
</script>