<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<input id="shop_id" type="submit" value="Показать мой IP">
<div id="myip"></div>
<script src="script.js"></script>
</body>
</html>alert(1); 
<input id="shop_id" type="submit" onclick="alert('1')" value="Показать мой IP">