$("#<%= Button5.ClientID %>").live('click', function (e) {
e.preventDefault();
$("#<%= Panel5.ClientID %>").dialog({
open: function (type, data) {
$(this).parent().appendTo("form");
},
autoOpen: true,
title: 'Multiple Bid',
resizable: true,
width: 'auto',
height: 'auto',
modal: true,
buttons: { OK: function () { $(this).dialog("close"); } }
});
});

});

in the above codes the panel5 holds all kinds of content including
buttons.so you can do whatever you like as you normally do in asp.net
web page.