​x
 
<html>
<head>
<script type="text/javascript">
function alertId()
  {
  var txt="Id: " + document.getElementById("submit1").id
  txt=txt + ", type: " + document.getElementById("submit1").type
  txt=txt + ", value: " + document.getElementById("submit1").value
  alert(txt)
  document.getElementById("submit1").disabled=true
  }
</script>
</head>
<body>
​
<form>
<input type="submit" id="submit1" value="Submit values" onclick="alertId()" />
</form>
​
</body>
</html>
​