JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.11.1/jquery.validate.min.js"></script>
<form method="post" name="UploadForm" id="UploadForm"
action="upload.php" enctype="multipart/form-data" >

    <input  type="text" class="button_date"  name="price" id="price"
value="" size="15" />

    <input class="button2" style="border-right:none; font-size:13px;"
name="Back" id="Back" type="submit"  value="Back" />

    <input class="button2" style="border-right:none; font-size:13px;"
name="List Item" id="submit" type="submit" value="List Item" /> 
</form>

JavaScript

function removeFocus()
{
    //...   
}

$('#Back').click(function (evt) {
    $('#UploadForm').attr('action', 'sellitem1.php');
});

$('#submit').click(function (evt) {
    removeFocus();
    return $("#UploadForm").validate({
        errorLabelContainer: "#messageBox",
        wrapper: "td",
        rules: {
            price: {
                required: true,
                number: true,
                range: [1.00, 500000.00]
            }
        }
    });
});