function _setEditor(welTextarea){
        var elContainer = welTextarea.parents('[data-toggle="markdown-editor"]').get(0);

        if(!elContainer){
            return false;
        }

        $(elContainer).on("click", 'a[data-mode="preview"]', function(weEvt){
            var welPreview = $(weEvt.delegateTarget).find("div.markdown-preview");
            var sContentBody = welTextarea.val();

            _replaceAutoLink(welPreview, sContentBody);

            welPreview.css({"min-height": welTextarea.height() + 'px'});
        });

        welTextarea.on("keydown.tabkey-event-handler", function(e) {
            var $this = $(this);
            if (e.shiftKey && e.key === 'Tab') {
                e.preventDefault();
                _untab($this.get(0));
            } else if ( e.key === 'Tab' ) {
                e.preventDefault();
                _tab($this.get(0));
            }
        });
    }
set Markdown Editor

@param {Wrapped Element} welTextarea