Changed required values, add clientside validation
diff --git a/erpnext/www/book-appointment/index.html b/erpnext/www/book-appointment/index.html
index 2e03213..1f6dd2e 100644
--- a/erpnext/www/book-appointment/index.html
+++ b/erpnext/www/book-appointment/index.html
@@ -45,16 +45,14 @@
     </div>
     <div class="row justify-content-center mt-3">
         <div class="col-md-4 align-items-center">
-            <input class="form-control mt-3" type="text" name="customer_name" id="customer_name" placeholder="Your Name"
-                required>
-            <input class="form-control mt-3" type="tel" name="customer_number" id="customer_number"
-                placeholder="Contact Number" required>
-            <input class="form-control mt-3" type="text" name="customer_skype" id="customer_skype" placeholder="Skype"
-                required>
-            <input class="form-control mt-3"type="email" name="customer_email" id="customer_email" 
-                placeholder="Email Address">
+            <form id="customer-form" action='#'>
+            <input class="form-control mt-3" type="text" name="customer_name" id="customer_name" placeholder="Your Name (required)"required>
+            <input class="form-control mt-3" type="tel" name="customer_number" id="customer_number" placeholder="+910000000000">
+            <input class="form-control mt-3" type="text" name="customer_skype" id="customer_skype" placeholder="Skype">
+            <input class="form-control mt-3"type="email" name="customer_email" id="customer_email" placeholder="Email Address (required)"required>
             <textarea class="form-control mt-3" name="customer_notes" id="customer_notes" cols="30" rows="10"
                 placeholder="Notes"></textarea>
+            </form>
             <div class="row mt-3 ">
                 <div class="col-md"><button class="btn btn-dark form-control" onclick="initialise_select_date()">Go back</button></div>
                 <div class="col-md"><button class="btn btn-primary form-control " onclick="submit()" id="submit-button">Submit</button></div>