Prompt Box

JavaScript Code:

<script type="text/javascript">

function showBox()

{

var name=prompt("Please enter your name", "Anil");

if (name!=null && name!="")

  {

    document.write("Hello " + name + "! How are you?");

  }

}

</script>

HTML Code:

<input type="btn_Sow" onclick="showBox()" value="Show!" />