JQuery :: Error Placement After Calendar Icon For DatePicker

I am using both the jQuery Validation plugin and the datePicker plugin. I would like to get the error message for this showing after the calendar icon for the datePicker plugin. I have tried this and cannot get it to work and so far not found a solution on any website I have checked.

jQuery Validation code
$(document).ready(function() {
$("#adminform").validate({
submitHandler: function(form) {
SubmittingForm();
},
rules: {
date: {
required: true,
date: true
}},
errorPlacement: function(error, element) {
if(element.type == 'input') {
error.insertAfter(element.sibling(a));
} else {
error.insertAfter(element);
}}});
});
Trying the sibling thing was my last probably silly attempt at getting this working.

HTML output when the field fails validation
<fieldset>
<legend>Update Date</legend>
<label for="date" class="admin">Date of Run: </label>
<input type="text" class="date-pick dp-applied error" size="7" value="" name="date" id="date">
<label for="date" generated="true" class="error">This field is required.</label>
<a title="Choose date" class="dp-choose-date" href="#">Choose date</a>
</fieldset>
As you can see the label for the error is placed inbetween the input field and <a> for the calendar image. How to get this label to show after the <a>.