added event on numeric keypad
diff --git a/erpnext/public/js/pos/pos.html b/erpnext/public/js/pos/pos.html
index c634135..1019647 100644
--- a/erpnext/public/js/pos/pos.html
+++ b/erpnext/public/js/pos/pos.html
@@ -73,15 +73,15 @@
 					{% for(var i=0; i<3; i++) { %}
 						<div class="row text-right">
 							{% for(var j=i*3; j<(i+1)*3; j++) { %}
-								<button type="button"  class="btn btn-default pos-keyboard-key">{{j+1}}</button>
+								<button type="button"  class="btn btn-default numeric-keypad" val="{{j+1}}">{{j+1}}</button>
 							{% } %}
-							<button type="button" class="btn text-center btn-default pos-keyboard-key">{{ chartData[i] }}</button>
+							<button type="button" id = "pos-item-{{ chartData[i].toLowerCase() }}" class="btn text-center btn-default numeric-keypad pos-operation">{{ chartData[i] }}</button>
 						</div>
 					{% } %}
 					<div class="row text-right">
-						<button type="button"  class="btn btn-default delete-btn">Del</button>
-						<button type="button"  class="btn btn-default pos-keyboard-key">0</button>
-						<button type="button"  class="btn btn-default pos-keyboard-key">.</button>
+						<button type="button"  class="btn btn-default numeric-keypad numeric-del">Del</button>
+						<button type="button"  class="btn btn-default numeric-keypad" val="0">0</button>
+						<button type="button"  class="btn btn-default numeric-keypad" val=".">.</button>
 						<button type="button" class="btn btn-primary pos-pay">Pay</button>
 					</div>
 		        </div>
diff --git a/erpnext/public/js/pos/pos_bill_item.html b/erpnext/public/js/pos/pos_bill_item.html
index 1a1f1e2..21868a6 100644
--- a/erpnext/public/js/pos/pos_bill_item.html
+++ b/erpnext/public/js/pos/pos_bill_item.html
@@ -18,13 +18,13 @@
     </div>
     <div class="col-xs-2 text-right">
 		<div class="row input-sm">
-            <input type="tel" value="{%= discount_percentage %}" class="form-control text-right pos-item-discount">
+            <input type="tel" value="{%= discount_percentage %}" class="form-control text-right pos-item-disc">
         </div>
     </div>
     <div class="col-xs-3 text-right">
         <div class="text-muted" style="margin-top: 5px;">
 			{% if(enabled) { %}
-				<input type="tel" value="{%= rate %}" class="form-control input-sm pos-item-rate text-right">
+				<input type="tel" value="{%= rate %}" class="form-control input-sm pos-item-price text-right">
 			{% } else { %}
 				<h6>{%= format_currency(rate) %}</h6>
 			{% } %}
diff --git a/erpnext/public/js/pos/pos_selected_item.html b/erpnext/public/js/pos/pos_selected_item.html
index 491938e..833cdd9 100644
--- a/erpnext/public/js/pos/pos_selected_item.html
+++ b/erpnext/public/js/pos/pos_selected_item.html
@@ -3,25 +3,25 @@
 	<div class="form-group edit-pos-item">
 		<label class=" text-left col-xs-4">Price:</label>
 		<div class="col-xs-8">
-			<input class="form-control text-right" value="{%= rate %}">
+			<input class="form-control text-right pos-item-price" disabled value="{%= rate %}">
 		</div>
 	</div>
 	<div class="form-group edit-pos-item">
 		<label class=" text-left col-xs-4">Qty:</label>
 		<div class="col-xs-8">
-			<input class="form-control text-right pos-item-qty" value="{%= qty %}">
+			<input class="form-control text-right pos-item-qty" disabled value="{%= qty %}">
 		</div>
 	</div>
 	<div class="form-group edit-pos-item">
 		<label class=" text-left col-xs-4">Discount:</label>
 		<div class="col-xs-8">
-			<input class="form-control text-right" value="{%= discount_percentage %}">
+			<input class="form-control text-right pos-item-disc" disabled value="{%= discount_percentage %}">
 		</div>
 	</div>
 	<div class="form-group edit-pos-item">
 		<label class=" text-left col-xs-4">Amount:</label>
 		<div class="col-xs-8">
-			<input class="form-control text-right " value="{%= amount %}">
+			<input class="form-control text-right " disabled value="{%= amount %}">
 		</div>
 	</div>
 </div>
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