Untitled

<html>
<head>
</head>
<body>
	<script src="javascript.js" type="text/javascript"> </script>

	<input type="radio" name="gender" id="gender_Male" value="Male" />
	<input type="radio" name="gender" id="gender_Female" value="Female" />
	<button onclick="myFunction()">HIT ME</button>
	<p id="demo">Andi</p>
</body>
</html>
var global = 0;
function myFunction() {
    document.getElementById("demo").innerHTML = "Hello World";
    if(document.getElementById('gender_Male').checked) {
  		document.write("hsarT");
	}else if(document.getElementById('gender_Female').checked) {
  		document.write("Trash");
	}
}