diff --git a/src/Yavsc/wwwroot/js/md-helpers.min.js b/src/Yavsc/wwwroot/js/md-helpers.min.js
index f6ea664d..16daccab 100644
--- a/src/Yavsc/wwwroot/js/md-helpers.min.js
+++ b/src/Yavsc/wwwroot/js/md-helpers.min.js
@@ -1,3 +1,5 @@
 
 var markdownize=function(content){if(!content)return'';var html=content.split('\n').map($.trim).filter(function(line){return line!='';}).join('\n');return toMarkdown(html);};var converter=new showdown.Converter();var htmlize=function(content){return converter.makeHtml(content);};var updateMD=function(id,content){if(!content)return jQuery('#'+id).val('');var markdown=markdownize(content);if(jQuery('#'+id).val()===markdown){return;}
-jQuery('#'+id).val(markdown);};
\ No newline at end of file
+jQuery('#'+id).val(markdown);};var allowDrop=function(ev){ev.preventDefault();}
+var drag=function(ev){ev.dataTransfer.setData('text',ev.target.id);}
+var drop=function(ev){ev.preventDefault();var data=ev.dataTransfer.getData('text');ev.target.appendChild(document.getElementById(data));}
\ No newline at end of file