String scriptString = "<script language=JavaScript> function DoClick() {";
                scriptString += "if(confirm('您真的要删除该记录')){alert('ok')}else{alert('no')}}";
                scriptString += "</script>";
   
                if(!this.IsStartupScriptRegistered("Startup"))
                    this.RegisterStartupScript("Startup", scriptString);
======================
<INPUT  type="button" value="Button" onclick="DoClick()">