public string GetSpaceSuit()
{
return "You are eating a spacesuit!";
}
}

And, finally, this is in my .js :

vTomato = document.getElementById("tomato");
vPotato = document.getElementById("potato");
vSpacesuit = document.getElementById("spaceSuit");

addEvent(vTomato, "click", GetTomato);
addEvent(vPotato, "click", GetPotato);
addEvent(vSpacesuit, "click", GetSpaceSuit);

function GetTomato(ev)
{
Default.GetTomato(GetTomato_Callback)
}

function GetTomato_Callback(response)
{
output.innerText=response.value;
}

function GetPotato(ev)
{
Default.GetPotato(GetPotato_Callback)
}

function GetPotato_Callback(response)
{
output.innerText=response.value;
}

function GetSpaceSuit(ev)
{
Default.GetSpaceSuit(GetSpaceSuit_Callback)
}

function GetSpaceSuit_Callback(response)
{
output.innerText=response.value;
}

Strangely enough, no errors show up in Firefox's Javascript console.
However, pressing any of my AJAX buttons causes a full page refresh.

Also, one other question - in the Starter Kit, I see page elements referred to using a dollar sign, quotes, and parens, like so :

$("element").innerHtml = foo;

When I try to use this in my own project, it throws errors. Is this something specific to AJAX .NET?

Thanks again for your help.