javascript - Make a loop in jquery -

hello want know how make loop js through id because have email id 2 fields 2 different forms able choose when click on id of form right displays error on right form , vice versa

my code :

<script type="text/javascript">     $(document).ready(function(){         $("input#id_st-courriel").focusout(checkemailfield);     });      function checkemailfield() {             $fieldvalue = $("input#id_st-courriel").val();         $.ajax({             url: '/ajax/checkemailfield',             data: ({                 value: $fieldvalue             }),             type: 'get',             success: function($data, $textstatus, $xmlhttprequest) {                 if ($data != '') {                     $("input#id_st-courriel").parent().prev('errorlist').remove();                     $("input#id_st-courriel").parent().before($data);                 }             }         })     } </script> 

i have id : id_st-courriel , other id second formulaire : id_em-courriel

for moment i're error display on first form id: id_st-courriel

edit :

i have second problem

my views.py

def ajax_check_email_field(request):     form = loginform(request.post)     html_to_return = ''     if 'value' in request.get:         field = forms.emailfield()         try:             field.clean(request.get['value'])         except exceptions.validationerror ve:             html_to_return = '<ul class="errorlist">'             message in ve.messages:                 html_to_return += '<li>' + message + '</li>'             html_to_return += '</ul>'     return httpresponse(html_to_return) 

you can make minor changes like

1. update selector select both fields - either use class selector after add common class both fields or use multiple selector syntax select both elements using id
2. in event handler dynamically select current element using this reference - in event handler this refer input element triggered event

so

$(document).ready(function() {   $("#id_st-courriel, #id_em-courriel").focusout(checkemailfield); //you can simplify selector if can add common class both these fields , use class selector add event handler });  function checkemailfield() {   var $fileld = $(this);   var $fieldvalue = $fileld.val();   $.ajax({     url: '/ajax/checkemailfield',     data: ({       value: $fieldvalue     }),     type: 'get',     success: function($data, $textstatus, $xmlhttprequest) {       $fileld.parent().prev('.errorlist').remove();//may .errorlist if class       if ($data != '') {         $fileld.parent().before($data);       }     }   }) }