[ask js] what's wrong with my code?

zet

i have problem with my js.
i want to make the input combo dynamic to the select combo.

here's is my coding

<body>
<form name=xx action=<?=$PHP_SELF?>>
pilih : <select name=a>
<option value=1 onclick="passingVar('coba','passing var');">coba1</option>
<option value=2 onclick="passingVar('coba','passing var lagi');">coba1</option>
</select><br>
input b: <input name=b type=text><br>
input c: <input name=c type=text><br>
<input type=submit value=submit>
</form>
</body>

void_function

<select name="mySelect" id="mySelect" onselect="selectFunction();">
...
<input type="text" name="myInput" id="myInput" value="">


function selectFunction() {
  var val= document.getElementById("mySelect").value;

  document.getElementById("myInput").value=val;
}

Permutate to achieve desired results. Basically, use DOM - Document Object Model (google for more info). Don't forget endtags '/' if you use XHTML.

zet

tenkyu void