How to use javascript to edit image name ?

I have 2 regions.
In the 1st region I have "Select List with Redirect" so when I select the item in the list then I get the value of 1,23,.... etc for variable P2_X_COMP and it reloads the same page.
Now in the 2nd region, i am trying to diaplay a image.
< img src="/i/1.jpg" WIDTH=120 HEIGHT=160
so I wanted to make that dynamic and at run time depending the item selected in list selected from region 1, I wanted to have images dynamically in region 2.
so something like if value of P2_X_COMP is 1 then
img src="/i/1.jpg" WIDTH=120 HEIGHT=160
else if value of P2_X_COMP is 2 then
img src="/i/2.jpg" WIDTH=120 HEIGHT=160
else if value of P2_X_COMP is 3 then
img src="/i/3.jpg" WIDTH=120 HEIGHT=160
how do i do that ?
Regards,
Nikhil

Hi Nikhil,
In Region Source of you page please enter something like this: < i m g src="/i/1.jpg" width="120" height="160" id="MY_IMAGE">For HTML Form Element Attributes: onchange="javascript:changeImage(pThis.value);"
In HTML Header of your page you enter the following code:
<script type="text/javascript">
function changeImage(pSelect)
var img = document.getElementById('MY_IMAGE');
switch (pSelect)
    case "1":
       img.src = '/i/1.jpg';
       break;
    case "2":
       img.src = '/i/2.jpg';
       break;
    case "3":
       img.src = '/i/3.jpg';
       break;
    default:
       img.src = '/i/1.jpg';
       break;
</script>I've not tested this, so maybe you have to make changes.
chrissy

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