如何在javascript确认对话框返回true后触发服务器端按钮的单击事件

I have an input as count named in a repeater with hdncount hidden input. And I have a server side button out of repeater. This script runs onblur event of count. I want to trigger server side button's click event if client click OK button on confirmation. What should I do to do that?I have an input as count named in a repeater wi