Minor - removing white spaces

main/messages/inbox.php

@@ -1,4 +1,5 @@
 <?php
+
 /* For licensing terms, see /license.txt */
 /**
  * 	@package chamilo.messages
@@ -26,7 +27,7 @@ if (api_get_setting('allow_message_tool')!='true'){
     api_not_allowed();
 }
 
-$htmlHeadXtra[]='<script type="text/javascript">
+$htmlHeadXtra[] = '<script>
 
 function show_icon_edit(element_html) {
 	ident="#edit_image";