fixing some more LMS accessibility issues

lms/templates/courseware/courseware.html

@@ -156,7 +156,7 @@
         <div id="calculator_wrapper">
             <form id="calculator">
                 <div class="input-wrapper">
-                    <input type="text" id="calculator_input" />
+                    <input type="text" id="calculator_input" title="Calculator Input Field" />
 
                     <div class="help-wrapper">
                         <a href="#">Hints</a>
@@ -176,8 +176,8 @@
                         </dl>
                     </div>
                 </div>
-                <input id="calculator_button" type="submit" value="="/>
-                <input type="text" id="calculator_output"  readonly />
+                <input id="calculator_button" type="submit" title="Calculate" value="="/>
+                <input type="text" id="calculator_output" title="Calculator Output Field" readonly />
             </form>
 
         </div>

lms/templates/seq_module.html

@@ -10,7 +10,8 @@
         <li>
         <a class="seq_${item['type']} inactive progress-${item['progress_status']}"
            data-id="${item['id']}"
-           data-element="${idx+1}">
+           data-element="${idx+1}"
+           href="javascript:void(0);">
             <p>${item['title']}</p>
           </a>
         </li>