Can we access Umbraco Dictionary item value from JavaScript ?
As I am using Umbraco 6.0.5
What I have done is declare variable in using Javascript
<script type="text/javascript">
var UmbracoDicKeyValue = '<%= kraftvaerk.umbraco.Translations.translate("Umbraco_Dic_Key", lang) %>';
</script>
And for setting value of lang variable from server side.
protected string lang = (!String.IsNullOrEmpty(umbraco.library.Session("lang")) ? umbraco.library.Session("lang") : "en-GB");
umbraco.library.setSession("lang", lang);
Now use variable UmbracoDicKeyValue in javascript code.