Thanks for the response. >But you could stop and then restart the slideshow with a diff >slideExpr.
I'm not sure if I understand how to do that. Am I recreating the
cycle to set the new slideExpr like this?
$("#chg").click(function(){
$('#show).cycle('stop');
$('#show).cycle({
fx: 'scrollHorz'
, slideExpr:'b'
, next: "#next"
, prev: "#prev"
})
}
I've tried something like the above and it just stopped working. Have
I missed anything?

