How do you pass an ASP vars to JS

----- My attempt -----------------------------------
<% dim unita, unitb
unita = "http://www.mydomain/10835.jpg"
unitb = "http://www.mydomain/10835b.jpg"

%>
<script>
String unit1 = <% = unita %>
String unit2 = <% = unitb %>
function bigPic(image)
{
document.getElementById('big').src= image;
}
</script>
--------------------------------------------------------------------
I get "unit1 undefined and unit2 undefined"

your code works fine for me.

nothing wrong with the code???
the asp vars are created on the server.....once the asp-file leaves the server they no longer exist cos asp is converted to html. So those vars never get to the client...
try putting js script in your asp by using response.write("<script>js code</script>")

Basic image swaps from thumbs to the 'Big' picture.
<%

dim unita, unitb
unita = "http://www.horsetrailerworld.com/ads/adimages/10835.jpg"
unitb = "http://www.horsetrailerworld.com/ads/adimages/10835b.jpg"

%>
<img src="http://horsetrailerworld.com/ads/adimages/10835sm.jpg" onclick="document.getElementById('big').src= '<% = unita %>' ">
<img src="http://horsetrailerworld.com/ads/adimages/10835bsm.jpg" onclick="document.getElementById('big').src= '<% = unitb %>' ">
<p>


<img src="http://mydomain/10835.jpg" alt="big" name="big" id="big"></p>