Dropdown problem

[Nee Kat]

I have to create a dropdown box based on a selection in another drop down on the same page.

I mean to say if a dropdown A has a selection "1" then only dropdown B should show otherwise not.
Disabling B would also work and enable it only when dropdown A has a selection "1".

Any ideas how to do this..like which functions should be used. Code would be appreciated.

[Chris Baron]

Hi Nee,
you could use the onchange-event to set the display from "none" to "inline" if the value is 1.

<script>
<!--
function showbox2( value )
{
var box2 = document.myform.ddbb;
 if( value==1 ) 
      box2.style.display='inline';
 else box2.style.display='none';
}
 
//-->
</script>

<form name="myform" action="#">
 
<select name="ddba" onchange="showbox2( this.value )">
<option value="">*** Please Select ***
<option value="1">111
<option value="2">222
<option value="3">333
</select>
<select name="ddbb" style="display:none;">
<option value="">111.1
<option value="">111.2
<option value="">111.3
</select>
</form>

hth cb
[ October 19, 2005: Message edited by: Chris Baron ]

[Nee Kat]

Thanks for the code Chris. It works great.