Adding Values on runtime

[Praful Thakare]

Hi all i have following view of my jsp page
|------------------| |------------------|
|combo Box 1 V| |combo Box 2 V |
|------------------| |------------------|
For populating both comoboxes i have two querys
i m filling combox1 when i load my page
but combox2 is to be filled after value selection
from one cause that valueis used in query for next combobox!! this is to be done with out refreshing the form , i cant use jsp code for it!
so is there any way to do it using javascript ???
I know i will have to get values for all id in combox1 which r to be filled on cb2 but i m not getting how to do this onchage event !!
kindly help me out
thanx in advance !!!

[Chris Baron]

Hi Praful,
if the order ( index ) of selectbox-options is equal, you can use selectedIndex:

<form name="form1">
<select name="combo1" [B]onChange="document.form1.combo2.selectedIndex = this.selectedIndex;"[/B]>
<option value="a">ah
<option value="b">be
<option value="c">ce
</select>
<select name="combo2">
<option value="a">ah
<option value="b">be
<option value="c">ce
</select>
</form>

hth

[Eric Pascarello]

Yeah, you can do it with JavaScript, it is called a double combo
Here is a list of scripts that may help
http://www.javascriptkit.com/script/cutindex16.shtml
Eric