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+<!doctype>
+<html>
+<title>JevCoin</title>
+<head>
+<script type="text/javascript" src="../ext/bignumber.min.js"></script>
+<script type="text/javascript" src="../ext/ethereum.js/dist/ethereum.js"></script>
+</head>
+<body>
+
+<h1>JevCoin <code id="contract_addr"></code></h1>
+<div>
+	<strong>Balance</strong>
+	<span id="balance"></strong>
+</div>
+
+<div>
+	<span>Address:</span>
+	<input type="text" id="address" style="width:200px">
+	<span>Amount:</span>
+	<input type="text" id="amount" style="width:200px">
+	<button onclick="transact()">Send</button>
+	<span id="message"></span>
+</div>
+
+<hr>
+
+<table width="100%" id="table">
+	<tr><td style="width:40%;">Address</td><td>Balance</td></tr>
+	<tbody id="table_body"></tbody>
+</table>
+
+</body>
+
+<script type="text/javascript">
+	var web3 = require('web3');
+	var eth = web3.eth;
+
+	web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8545'));
+	var desc = [{
+		"name": "balance(address)",
+		"type": "function",
+		"inputs": [{
+			"name": "who",
+			"type": "address"
+		}],
+		"constant": true,
+		"outputs": [{
+			"name": "value",
+			"type": "uint256"
+		}]
+	}, {
+		"name": "send(address,uint256)",
+		"type": "function",
+		"inputs": [{
+			"name": "to",
+			"type": "address"
+		}, {
+			"name": "value",
+			"type": "uint256"
+		}],
+		"outputs": []
+	}, {
+		"name":"Changed",
+		"type":"event",
+		"inputs": [
+			{"name":"from","type":"address","indexed":true},
+			{"name":"amount","type":"uint256","indexed":true},
+		],
+	}];
+
+	var address = localStorage.getItem("address");
+	// deploy if not exist
+	if (address == null) {
+		var code = "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";
+		address = web3.eth.transact({data: code});
+        	localStorage.setItem("address", address);
+	}
+	document.querySelector("#contract_addr").innerHTML = address;
+
+	var contract = web3.eth.contract(address, desc);
+	contract.Changed({from: eth.coinbase}).changed(function() {
+		refresh();
+	});
+
+	function refresh() {
+        	document.querySelector("#balance").innerHTML = contract.balance(eth.coinbase);
+
+		var table = document.querySelector("#table_body");
+		table.innerHTML = ""; // clear
+
+		var storage = eth.storageAt(address);
+		table.innerHTML = "";
+		for( var item in storage ) {
+			table.innerHTML += "<tr><td>"+item+"</td><td>"+web3.toDecimal(storage[item])+"</td></tr>";
+		}
+	}
+
+	function transact() {
+		var to = document.querySelector("#address");
+		if( to.value.length == 0 ) {
+			to = "0x4205b06c2cfa0e30359edcab94543266cb6fa1d3";
+		} else {
+			if (to.value.substr(0,2) != "0x")
+				to.value = "0x"+to.value;
+		}
+
+		var value = document.querySelector("#amount");
+		var amount = parseInt( value.value );
+		console.log("transact: ", to.value, " => ", amount)
+
+		contract.send( to.value, amount );
+
+		to.value = "";
+		value.value = "";
+
+		var message = document.querySelector("#message")
+		message.innerHTML = "Submitted";
+		setTimeout(function() {
+			message.innerHTML = "";
+		}, 1000);
+	}
+
+	refresh();
+</script>
+</html>
+
+<!--
+contract JevCoin {
+    function JevCoin()
+    {
+        balances[msg.sender] = 1000000;
+    }
+ 
+    event Changed(address indexed from, uint indexed amount);
+    function send(address to, uint value)
+    {
+        if( balances[msg.sender] < value ) return;
+ 
+        balances[msg.sender] -= value;
+        balances[to] += value;
+ 
+        Changed(msg.sender, value);
+        Changed(to, value);
+    }
+ 
+    function balance(address who) constant returns(uint t)
+    {
+        t = balances[who];
+    }
+ 
+    mapping(address => uint256) balances;
+ }
+-!>