Return value from Javascript function

[shangrilla]

Button1.Attributes.Add("onclick", "testClient();&quot

On clientSide I have:
//--------------------------------------------------
function testClient()
{
doyou = confirm("You are about to delete rows that are checked? (OK = Yes Cancel = No)"

if (doyou == true){
return true;}

if (doyou == false){
return false;}

}
//-------------------------------------------------------
I want to do something like this:

dim test as boolean
test = Button1.Attributes.Add("onclick", "testClient();&quot

Now test contains the value returned from testClient()

How can I do this?

 

[shangrilla]

After browsing around the forum I found that I can do this:

Button.Attributes.Add("onClick", "return confirm('Are you sure you wish to delete this item?');&quot

But how would I assign the value returned to a variable.
if true then
'delete
else
' do nothing
endif

 

[FluxAnomaly]

You could save it in a hidden field