diff --git a/app/views/memos/show.html.erb b/app/views/memos/show.html.erb
index e121098f4..017a9a03c 100644
--- a/app/views/memos/show.html.erb
+++ b/app/views/memos/show.html.erb
@@ -51,7 +51,7 @@
              style="word-break: break-all;word-wrap: break-word;">
           <%= label_tag l(:field_subject) %>: <%=h @memo.subject %>
         </div>
-		<div class="memo-content">
+		<div class="memo-content" id="memo-content_div">
 		<%= textAreailizable(@memo,:content) %>
 			<p>							
 				<% if @memo.attachments.any?%>
@@ -149,8 +149,17 @@
 
 
 <script type="text/javascript">
-jQuery(document).ready(function($) {
-	transpotUrl('.lz');
-	transpotUrl('.replies');
-});
+    jQuery(document).ready(function($) {
+        transpotUrl('.lz');
+        transpotUrl('.replies');
+    });
+    window.onready = function() {
+        var maxwidth = $("#memo-content_div").width();
+        $("#memo-content_div").children().each(function(){
+            if($(this).width()>maxwidth)
+            {
+                $(this).width(maxwidth);
+            }
+        });
+    };
 </script>
\ No newline at end of file