diff --git a/accounts/doctype/sales_invoice/pos.js b/accounts/doctype/sales_invoice/pos.js
new file mode 100644
index 0000000..7dc8186
--- /dev/null
+++ b/accounts/doctype/sales_invoice/pos.js
@@ -0,0 +1,57 @@
+erpnext.POS = Class.extend({
+	init: function(wrapper, frm) {
+		this.wrapper = wrapper;
+		this.frm = frm;
+		this.wrapper.html('<div class="customer-area"></div>\
+			<div class="item-area"></div>\
+			<div><button class="btn btn-default btn-add">Add</button>');
+		
+		this.make();
+
+		var me = this;
+		$(this.frm.wrapper).on("refresh-fields", function() {
+			me.refresh();
+		});
+
+	},
+	make: function() {
+		this.make_customer();
+		this.make_items();
+	},
+	make_customer: function() {
+		var me = this;
+		this.customer = wn.ui.form.make_control({
+			df: {
+				"fieldtype": "Link",
+				"options": "Customer",
+				"label": "Customer",
+				"fieldname": "pos_customer"
+			},
+			parent: this.wrapper.find(".customer-area")
+		});
+		this.customer.make_input();
+		this.customer.$input.on("change", function() {
+			if(!me.customer.autocomplete_open)
+				wn.model.set_value("Sales Invoice", me.frm.docname, "customer", this.value);
+		});		
+	},
+	make_items: function() {
+		var me = this;
+		this.wrapper.find(".btn-add").click(function() {
+			var child = wn.model.add_child(me.frm.doc, "Sales Invoice Item", "entries");
+			child.item_code = "Test Item";
+			me.frm.cscript.item_code(me.frm.doc, child.doctype, child.name);
+		});
+	},
+	refresh: function() {
+		var me = this;
+		this.customer.set_input(this.frm.doc.customer);
+		
+		// add items
+		var $items = me.wrapper.find(".item-area").empty();
+		$.each(wn.model.get_children("Sales Invoice Item", this.frm.doc.name, "entries", 
+			"Sales Invoice"), function(i, d) {
+				$(repl("<div>%(item_code)s</div>", d)).appendTo($items);
+			});
+	}
+})
\ No newline at end of file
diff --git a/accounts/doctype/sales_invoice/sales_invoice.js b/accounts/doctype/sales_invoice/sales_invoice.js
index aa21d5d..cfb5e95 100644
--- a/accounts/doctype/sales_invoice/sales_invoice.js
+++ b/accounts/doctype/sales_invoice/sales_invoice.js
@@ -25,6 +25,7 @@
 wn.require('app/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.js');
 wn.require('app/utilities/doctype/sms_control/sms_control.js');
 wn.require('app/selling/doctype/sales_common/sales_common.js');
+wn.require('app/accounts/doctype/sales_invoice/pos.js');
 
 wn.provide("erpnext.accounts");
 erpnext.accounts.SalesInvoiceController = erpnext.selling.SellingController.extend({
@@ -37,6 +38,10 @@
 				this.frm.set_df_property("debit_to", "print_hide", 0);
 			}
 		}
+		
+		// if(this.frm.doc.is_pos && this.frm.doc.docstatus===0) {
+		// 	cur_frm.cscript.toggle_pos(true);
+		// }
 	},
 	
 	refresh: function(doc, dt, dn) {
@@ -95,12 +100,34 @@
 						}
 					})
 				});
+				
+			// cur_frm.add_custom_button(wn._("POS View"), function() {
+			// 	cur_frm.cscript.toggle_pos();
+			// }, 'icon-desktop');
 
 		}
 		
 		cur_frm.cscript.hide_fields(doc, dt, dn);
 	},
 
+	toggle_pos: function(show) {
+		if((show===true && cur_frm.pos_active) || (show===false && !cur_frm.pos_active)) return;
+		
+		// make pos
+		if(!cur_frm.pos) {
+			cur_frm.layout.add_view("pos");
+			cur_frm.pos = new erpnext.POS(cur_frm.layout.views.pos, cur_frm);
+		}
+		
+		// toggle view
+		cur_frm.layout.set_view(cur_frm.pos_active ? "" : "pos");
+		cur_frm.pos_active = !cur_frm.pos_active;
+		
+		// refresh
+		if(cur_frm.pos_active)
+			cur_frm.pos.refresh();
+		
+	},
 	tc_name: function() {
 		this.get_terms();
 	},