why wont this js work in Firefox

good news it just came to be a minute ago how to do it.

heres what my code would need to be to work

function ColourChangerEven() {

<%
If Request.ServerVariables("HTTP_USER_AGENT") = "winIE5" Then
%> 
 document.all.Even.style.backgroundColor = document.frmRegister.Remote_Listing_Even.value;
 document.all.Even.style.backgroundColor = document.frmRegister.Remote_Listing_Even.value;

<%

'Else for all other browsers use document.getElementById
Else

%>
 document.getElementById("Even").style.backgroundColor = document.frmRegister.Remote_Listing_Even.value;
 document.getElementById("Even2").style.backgroundColor = document.frmRegister.Remote_Listing_Even.value;

<%
End If

%>

}

all you need to do is give the Item you want to change, an ID value then using the above examople change all part from the bold section (apart from the ID value)

then it will work with any, get the element:D