more finetuning...

templates/sell_userInfo.html

@@ -24,18 +24,21 @@ function checkEMail(theEmailAddress){
       }
     });
   } else {
-    def.reject("{status:'err', error:'pattern not matching e-mail format.'}")
+    def.reject({status:'err', error:'pattern not matching e-mail format.'});
   }
  return def.promise();
 }
 
 function nextHandler(){
+  $("#checkEMail").removeClass("hide");
   $("#alertInvalidEMail").addClass("hide");
   checkEMail($($('[name="email"]')[0]).val()).then(function(){
+    $("#checkEMail").addClass("hide");
     window.location="#Sell/page2/";
   }).fail(function(data){
     if (ibuyproperties.isDebugMode) { console.log("EMail Wrong"); }
     $("#alertInvalidEMailError").text(data.error);
+    $("#checkEMail").addClass("hide");
     $("#alertInvalidEMail").removeClass("hide");
     console.error("E-Mail check error",data)
   });
@@ -43,9 +46,13 @@ function nextHandler(){
 </script>
 
 <h3>About you</h3>
+<div id="checkEMail" class="alert alert-success hide" role="alert">
+  <span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span>
+  Checking the validity of the supplied EMail address...
+</div>
+
 <div id="alertInvalidEMail" class="alert alert-danger hide" role="alert">
   <span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span>
-  <span class="sr-only">Error:</span>
   A valid email address is required. Error-Description: <span id="alertInvalidEMailError"></span>
 </div>
 <div class="input-group" style="width:100%">