kevinya

var gvMain = $("table[id*=gvMain]");
var Deletelmgs = gvMain.find('input[type=image][src*=Delete]');
Deletelmgs.each(function (ImgIdx) {
                $(this).click(function () {
                    var blnConfirm = confirm("確認刪除該筆資料？");
                    return blnConfirm;
                });                               
            });