Feedback helper exploring (Razor, Javascript, jQuery, Rangy)

_R7_Feedback.cshtml

@{
   var errorTabID = Request.QueryString["errortabid"];   
   var errorContext = Request.QueryString["errorcontext"] ?? "";

   if (!string.IsNullOrWhiteSpace(errorTabID)) 
   {
      var textAreaID = "#dnn_ctr9144_Feedback_txtBody";
      var errorTabUrl = "http://" + Dnn.Portal.PortalAlias.HTTPAlias + "?tabid=" + errorTabID;
      
      <script type="text/javascript">
$(function() { 
$("#dnn_ctr9144_Feedback_cmdSend").attr ("onclick", "PreSendFeedback()");
});

function PreSendFeedback ()
{
     $("@textAreaID").val( $("@textAreaID").val() + 
"\n---\n" + "@errorTabUrl" + "\n" + "@errorContext");
//.attr ("disabled", "true");
}
      </script>
   }
   <p>@Dnn.Tab.TabName</p>
}

<a class="dnnPrimaryAction" onclick="PreSendFeedback ()">Test</a>

_R7_Feedback_Send.cshtml

<script type="text/javascript" src="/Resources/Shared/scripts/rangy/rangy-core.js"></script>
<style type="text/css">
*.unselectable {
    -moz-user-select: -moz-none;
    -khtml-user-select: none;
    -webkit-user-select: none;

    /*
      Introduced in IE 10.
      See http://ie.microsoft.com/testdrive/HTML5/msUserSelect/
    */
    -ms-user-select: none;
    user-select: none;
}
</style>
@{

<form action="http://www.volgau.com?tabid=4017" method="post" target="_blank">

<input name="errortabid" type="hidden" value="@Dnn.Tab.TabID" />

<input name="errorcontext" type="hidden" value="Error Context Value" /> 

<input class="dnnSecondaryAction" type="submit" />

</form>

<a class="dnnPrimaryAction unselectable" id="sendfeeback" onclick="javascript:return getErrorContext(this)" target="_blank" unselectable="true">Send feedback</a>

<script type="text/javascript">
/*
$(function() {
rangy.init();
});
*/
function getErrorContext (obj)
{

 $(obj).attr ("href",  "http://@Dnn.Portal.PortalAlias.HTTPAlias?tabid=4017&[email protected]");

var sel = rangy.getSelection();

var errorContext = encodeURIComponent(sel.toString().replace(/(\n|\r)/gm," ").replace(/\s+/g, " ").replace(/\"/g, "").trim().substring (0,100));

if (!!errorContext)
{
   $(obj).attr ("href",  $(obj).attr ("href") + "&errorcontext=" + errorContext);
}  

return true;
}

</script>

}