function _initVar(htOptions){
            htVar.sProjectName = htOptions.sProjectName;
            htVar.sMetaInfoURL = htOptions.sMetaInfoURL;
            htVar.sBasePathURL = htOptions.sBasePathURL;
            htVar.elStyle = document.styleSheets[0];
            htVar.sTplListItem = $("#tplFileListItem").text();
            htVar.rxSub = /text\/x-(.+)-source/;
            htVar.rxScala = /\.scala\.html$/i;
            htVar.sPath = htOptions.sInitialPath;
            htVar.nFontSize = 12;
            htVar.aPathQueue = [];
            htVar.aMarkdownExtension = ['markdown', 'mdown', 'mkdn', 'mkd', 'md', 'mdwn'];
        }
initialize variables

@param {Hash Table} htOptions