Add Sinhala font to Tinymce font list

tinyMCE.init({
// General options
mode : "textareas",
theme : "advanced",
plugins : "pagebreak,style,layer,table,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template,wordcount,advlist",

// Theme options
theme_advanced_buttons1 : "save,newdocument,|,bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,styleselect,formatselect,fontselect,fontsizeselect",
theme_advanced_fonts : "Wijesekara=Wijeya",
button_tile_map : true,
document_base_url : "http://[domain name]",
entity_encoding : "raw",
});