Can a Imagebutton do client-side onClick function

[termos]

I don't want my Imagebutton always sends an expensive round trip postbask event to server just because I click on the ImageButton to toggle the imageUrl. I suppose this toggling can be done at client side assuming the image is accessible at Client side.<BR><BR>Since I'd have tens of such imageButtons dynamically created in the page. Each time a postback event means recreating these ImageButoons all over again, which doesn't seem effecient.<BR><BR>Any suggestion , please advise.<BR><BR>Thanks<BR>Preload the Images into the browser, and then just switch the src of the image object for each one!<BR><BR>http://developer.irt.org/script/image.htm<BR><BR>the link above is images FAQ.<BR><BR>HTH.<BR>D.<BR><BR>