<asp:LinkButton ID="DeleteButton" runat="server" CommandName="Delete" Text="删除" OnClientClick="return jConfirm(this);" />


    <script type="text/javascript">
        function jConfirm(b) {
            if (confirm('是否删除')) {
                var href = $(b).attr("href");
                eval(href);
            }
            //最后一句必须return false否则会提交
            return false;
        }
   </script>

<a onclick="return jConfirm(this);" >>
//<![CDATA[
var theForm = document.forms['form1'];
if (!theForm) {
    theForm = document.form1;
}
function __doPostBack(eventTarget, eventArgument) {
    if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
        theForm.__EVENTTARGET.value = eventTarget;
        theForm.__EVENTARGUMENT.value = eventArgument;
        theForm.submit();
    }
}
//]]>
</script>