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javascript variable issue

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Join Date: Jun 2005
Posts: 85
Reputation: michael123 is an unknown quantity at this point 
Rep Power: 4
Solved Threads: 0
michael123 michael123 is offline Offline
Junior Poster in Training

Question javascript variable issue

  #1  
Mar 6th, 2008
I have a form text field called "field_0", and javascript code:
Help with Code Tags 
<script language="javascript">
function test() {
var a=document.form1.field_0.value;
alert (a);
}
</script>
<form name=form1 ....>
<input type=text name=field_0>
<input type=text name=field_1>
<....onclick='javascript: test();'>
</form>

if I run this, it pops up correct message box with the "field_0" value.

However if I change a little in javascript code:
Help with Code Tags 
<script language="javascript">
function test() {
var fd="field_0";
var a=document.form1.fd.value;
alert (a);
}
</script>
this script will no longer work, how can I use variable "fd" in "document.form...."? any idea?

Thanks.
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