var url = ""; function butclick(textNode) { var pageToNum = $(textNode).val(); var hidddenUrl = $("#hidden_url").val(); totalPage = $("#totalPage").val(); if (pageToNum == 1) { url = hidddenUrl; } else { url = hidddenUrl.slice(0, -4) + pageToNum + ".htm"; } //alert(url); if (pageToNum == null || pageToNum == "") { textNode.value = ""; return; } } $("#but_toPage").click(function() { var regex = /^[1-9][0-9]{0,}$/; totalPage = $("#totalPage").val(); if (($("#page_num").val() + "") == "") { $("#page_num").val(""); alert("輸入不能為空!"); } else if (parseInt($("#page_num").val()) > parseInt(totalPage)) { $("#page_num").val(""); alert("輸入頁數大於總頁數：" + totalPage); } else if ($("#page_num").val() != "" && !regex.test($("#page_num").val())) { if ($("#page_num").val() == 0) { alert("頁碼最小為1!"); $("#page_num").val(""); return; } $("#page_num").val(""); alert("頁碼格式不正確!"); } else { window.location = url; } });