常用JS驗證
// JavaScript Document for public//一些基本的驗證。2008-12-18 //去除左右空格String.prototype.trim = function () { return this.replace(/(^\s*)|(\s*$)/g, "");};//去左空格String.prototype.ltrim = function () { return this.replace(/(^\s*)/g, "");}; //去右空格String.prototype.rtrim = function () { return this.replace(/(\s*$)/g, "");};//驗證是否手機號碼String.prototype.isMobile = function () { return (/^(?:13\d|15[89])-?\d{5}(\d{3}|\*{3})/.test(this.Trim()));};//驗證是否電話號碼String.prototype.isTel = function () { return (/^(([0\+]\d{2,3}-)?(0\d{2,3})-)(\d{7,8})(-(\d{3,}))?/.test(this.Trim()));};//驗證是否郵箱function isEmail(email) { var reg = /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/; return reg.test(email);}//驗證是否郵編function isZip(zip) { var reg = /^\d{6}$/; return reg.test(zip);}//驗證是否數字function isNumber(num) { return !isNaN(num);}//驗證是否是整數function isInteger(str){var regu = /^[-]{0,1}[0-9]{1,}$/;return regu.test(str);}//驗證是否是正整數function isPositiveInteger( str ){ var regu = /^[0-9]{1,}$/; return regu.test(str);}function check(name) { var pattern=/[\/\\\:\*\?"\<\>\|]/; if(name.search(pattern)!=-1) { alert("invalidate"); return false; } return true; }//驗證名稱是否含有非法字符function isUnlawful(name){ var reg = /[\/\\\:\*\?"\<\>\|]/; return reg.test(name);}//驗證名稱是否含有中文function isCN(name){ var fn = get_fileName(name); var reg = /^[A-Za-z0-9]+$/; return reg.test(fn);}/////////////////////////////////////////////////////////////////////////////////表單驗證//驗證年齡function checkAge(age) { var age = document.getElementById("age").value.trim(); if (!isNumber(age)) { //alert("請輸入正確的年齡，須為數字"); return false; } if (age < 5 || age > 200) { //alert("年齡須在（5－200）之間"); return false; } return true;}//驗證郵箱function checkEmail(email) { var email = document.getElementById("email").value.trim(); if (!isEmail(email)) { //alert("請輸入正確的郵箱格式，如：yangshuo@163.com"); return false; } return true;}//驗證郵編function checkZip(zip) { var zip = document.getElementById("zip").value.trim(); if (!isZip(zip)) { //alert("請輸入正確的郵編，須為6位數字"); return false; } return true;}//驗證手機號碼function checkMobile(mobile) { var mobile = document.getElementById("mobile").value.trim(); if (!mobile.isMobile()) { alert("\u8acb\u8f38\u5165\u6b63\u78ba\u7684\u624b\u6a5f\u865f\u78bc\uff0c\u9808\u70ba11\u4f4d\u6578\u5b57\uff01"); return false; } return true;}//驗證電話號碼function checkTel(tel) { var tel = document.getElementById("tel").value.trim(); if (!tel.isTel()) { alert("\u8acb\u8f38\u5165\u6b63\u78ba\u7684\u96fb\u8a71\u865f\u78bc\u683c\u5f0f\uff0c\u5982\uff1a021-8888888"); return false; } return true;}//驗證身份證號碼 copy//20080314 ivor addfunction chkIDdata(obj){ var sid = obj.value.trim(); //alert("chkdata sid : "+sid); var alphabet = new Array(36), little = new Array(36); var number = new Array(10); alphabet[10] = 'A'; little[10] = 'a'; alphabet[11] = 'B'; little[11] = 'b'; alphabet[12] = 'C'; little[12] = 'c'; alphabet[13] = 'D'; little[13] = 'd'; alphabet[14] = 'E'; little[14] = 'e'; alphabet[15] = 'F'; little[15] = 'f'; alphabet[16] = 'G'; little[16] = 'g'; alphabet[17] = 'H'; little[17] = 'h'; alphabet[18] = 'J'; little[18] = 'j'; alphabet[19] = 'K'; little[19] = 'k'; alphabet[20] = 'L'; little[20] = 'l'; alphabet[21] = 'M'; little[21] = 'm'; alphabet[22] = 'N'; little[22] = 'n'; alphabet[23] = 'P'; little[23] = 'p'; alphabet[24] = 'Q'; little[24] = 'q'; alphabet[25] = 'R'; little[25] = 'r'; alphabet[26] = 'S'; little[26] = 's'; alphabet[27] = 'T'; little[27] = 't'; alphabet[28] = 'U'; little[28] = 'u'; alphabet[29] = 'V'; little[29] = 'v'; alphabet[32] = 'W'; little[32] = 'w'; alphabet[30] = 'X'; little[30] = 'x'; alphabet[31] = 'Y'; little[31] = 'y'; alphabet[33] = 'Z'; little[33] = 'z'; alphabet[34] = 'I'; little[34] = 'i'; alphabet[35] = 'O'; little[35] = 'o'; number[0] = '0'; number[1] = '1'; number[2] = '2'; number[3] = '3'; number[4] = '4'; number[5] = '5'; number[6] = '6'; number[7] = '7'; number[8] = '8'; number[9] = '9'; //alert("sid.charCodeAt(0) : "+sid.charCodeAt(0)); /* */ if(sid.charCodeAt(0) < 65 || sid.charCodeAt(0)> 90) { alert("您身份證號碼第一位數字輸入的不是大寫英文字") return(false) } if(sid.charCodeAt(1)<48 || sid.charCodeAt(1)>50) { alert("您輸入的第二碼不是1或2") return(false) } for(j=2; j<10; j++) if(sid.charCodeAt(j)<48 || sid.charCodeAt(j)>58){ alert("你輸入的2~9不是數字") return(false) } if(sid.charAt(9)=="") { alert("請輸入完整身份證號碼共10位數字") return(false) } var s=sid.substring(0,1); for(i=10; i<=alphabet.length; i++) if(s==alphabet[i]) s=i c=s.toString() a1=c.substr(0,1) a2=c.substr(1,1) y=parseInt(a1)+parseInt(a2*9)+parseInt(sid.charAt(1)*8)+parseInt(sid.charAt(2)*7)+parseInt(sid.charAt(3)*6)+parseInt(sid.charAt(4)*5)+parseInt(sid.charAt(5)*4)+parseInt(sid.charAt(6)*3)+parseInt(sid.charAt(7)*2)+parseInt(sid.charAt(8)*1) mod=y%10 if((10-mod) == parseInt(sid.charAt(9))){ //alert("恭喜您輸入身份證號碼正確") return true; } else if(mod==0 && parseInt(sid.charAt(9))==0){ // alert("恭喜您輸入身份證號碼正確") return true; } else{ alert("您輸入的身分證號碼不正確"); return false; }} //選擇復選框function checkSelect(formObj, eleName) { var checked = false; for (var i = 0; i < formObj.elements.length; i++) { if ((formObj.elements[i].name == eleName) && (formObj.elements[i].checked)) { checked = true; break; } } if (!checked) { alert("請選擇要刪除的紀錄!"); } return checked;}function checkSelectNoAlert(formObj, eleName) { var checked = false; for (var i = 0; i < formObj.elements.length; i++) { if ((formObj.elements[i].name == eleName) && (formObj.elements[i].checked)) { checked = true; break; } } return checked; } //全選或取消選擇復選框function selectOrNotAll(formObj, eleName, selectOrNotSelect) { for (var i = 0; i < formObj.elements.length; i++) { if (formObj.elements[i].name == eleName) { formObj.elements[i].checked = selectOrNotSelect; } }}//反選復選框function reverseSelect(formObj, eleName) { for (var i = 0; i < formObj.elements.length; i++) { if (formObj.elements[i].name == eleName) { formObj.elements[i].checked = !formObj.elements[i].checked; } }}//獲取文件副檔名function get_ext(f_path) { var ext = ""; if (f_path != null && f_path.trim().length > 0) { f_path = f_path.toLowerCase().trim(); ext = f_path.substring(f_path.lastIndexOf(".") + 1, f_path.length); } return ext;}//獲取文件名稱function get_fileName(f_path){ var fn = ""; if(f_path != null && f_path.trim().length > 0){ //var i = f_path.lastIndexOf("\"); //返回文件名稱最后出現'\'的索引 //var j = f_path.lastIndexOf("."); //返回文件名稱最后出現'.'的索引 fn = f_path.substring(f_path.lastIndexOf("\")+1,f_path.lastIndexOf(".")); //取得文件名稱 } return fn;}//獲取文件名稱+副檔名function get_fileNameAndExt(f_path){ var name=""; if(f_path!=null && f_path.trim().length>0){ var f = f_path.lastIndexOf("/"); name=f_path.substring(f+1,f_path.length); } return name;}/*驗證文件副檔名f_path 文件名 ， accept_ext 副檔名數組*/function chk_ext(f_path, accept_ext){ var ext = get_ext(f_path); //根據需求定制 //var accept_ext = new Array("png", "jpeg", "jpg", "gif"); var flag = false; if (ext != "") { for (var i = 0; i < accept_ext.length; i++) { if (ext == accept_ext[i]) { flag = true; } } } return flag;}//驗證圖片文件副檔名function chk_ext_img(f_path) { var ext = get_ext(f_path); //根據需求定制 var accept_ext = new Array("png", "jpeg", "jpg", "gif"); var flag = false; if (ext != "") { for (var i = 0; i < accept_ext.length; i++) { if (ext == accept_ext[i]) { flag = true; } } } return flag;}//驗證圖片文件副檔名 jpg,giffunction chk_ext_imgJG(f_path) { var ext = get_ext(f_path); //根據需求定制 var accept_ext = new Array("jpg", "gif"); var flag = false; if (ext != "") { for (var i = 0; i < accept_ext.length; i++) { if (ext == accept_ext[i]) { flag = true; } } } return flag;}//驗證zip文件副檔名function chk_ext_zip(f_path) { var ext = get_ext(f_path); //根據需求定制 var accept_ext = new Array("zip"); var flag = false; if (ext != "") { for (var i = 0; i < accept_ext.length; i++) { if (ext == accept_ext[i]) { flag = true; } } } return flag;}//驗證flv文件副檔名function chk_ext_flv(f_path) { var ext = get_ext(f_path); //根據需求定制 var accept_ext = new Array("flv"); var flag = false; if (ext != "") { for (var i = 0; i < accept_ext.length; i++) { if (ext == accept_ext[i]) { flag = true; } } } return flag;}//驗證其他文件副檔名function chk_ext_file(f_path) { var ext = get_ext(f_path); //根據需求定制 var accept_ext = new Array("doc", "ppt", "xsl", "rar", "pdf"); var flag = false; if (ext != "") { for (var i = 0; i < accept_ext.length; i++) { if (ext == accept_ext[i]) { flag = true; } } } return flag;}//XuShaoWei驗證其他文件檔名為CVS格式function chk_ext_filepath(f_path) { var ext = get_ext(f_path); //根據需求定制 var accept_ext = new Array("csv"); var flag = false; if (ext != "") { for (var i = 0; i < accept_ext.length; i++) { if (ext == accept_ext[i]) { flag = true; } } } return flag;}//驗證瀏覽器function checkBrowser() { if (window.navigator.userAgent.indexOf("MSIE") >= 1) { return "IE"; } else { if (window.navigator.userAgent.indexOf("Firefox") >= 1) { return "FF"; } else { return "other"; } }}//驗證瀏覽器是IE6，還是IE7function checkIE(){ var b_v = navigator.appVersion; var IE6 = b_v.search(/MSIE 6/i) != -1; var IE7 = b_v.search(/MSIE 7/i) != -1; if(IE6){ return "IE6"; }else if(IE7){ return "IE7"; }else{ return "other"; }}/* 用途：字元1是否以字串2開始 輸入：str1：字串；str2：被包含的字串 返回：如果通過驗證返回true,否則返回false*/function isFirstMatch(str1, str2) { var index = str1.indexOf(str2); if (index == 0) { return true; } return false;}//調整圖片寬度function changeImgWidth(obj, lastWidth){ if(obj.width>lastWidth) obj.width=lastWidth;}//驗證是否由字母或數字組成function isLetterOrNum(value){ var reg =/^[A-Za-z0-9]+$/; return reg.test(value);}//驗證是否由6位字母或數字組成function idOrPassword(value){ var reg =/^[A-Za-z0-9]{6,10}$/; return reg.test(value);}// 驗證表單字段值是否為空function isFieldEmpty(obj, msg) { if (obj.value.trim() == "") { alert(msg); try { obj.focus(); } catch(e) {} return true; } return false;}// 字段是否超長function isFieldLengthExceed(obj, maxlength, msg) { if (obj.value.trim() > maxlength) { alert(msg); try { obj.focus(); } catch(e) {} return true; } return false;}//判斷上傳圖片名是否為字母、數字、-和_// 參數：physicalPath 文件物理路徑// 參數：fillIn 是否為填function checkADAndUnderline(physicalPath,fillIn){ var pic = physicalPath; //表達式 var reg=/^(\w|-)+$/; var allowedSuffix = new Array("jpg","jpeg","gif"); if(fillIn){ if(pic == ""){ alert("必須選擇上傳圖片！"); return false; } } if(pic != ""){ var startIndex = pic.lastIndexOf('\\') + 1; var endIndex = pic.lastIndexOf("."); var fileName = pic.substring(startIndex, endIndex); if(!reg.test(fileName)){ alert("上傳的圖片名只能包涵字母、數字、-和_！"); return false; } var suffix = pic.substring(endIndex+1, pic.length).toLowerCase(); if((suffix != allowedSuffix[0]) && (suffix != allowedSuffix[1]) && (suffix != allowedSuffix[2])){ alert("只允許上傳jpg,jpeg,gif后綴的文件！"); return false; }else{ return true; } }else{ return true; }}//驗證是否由英文、數字、-、_組成function isLetterNumHyphen(value){ var reg =/^[A-Za-z0-9-_]+$/; return reg.test(value);}// 移除內容為空白的子元素function clearBlank(obj) { var nodes = obj.childNodes; for( var i = 0;i < nodes.length; i++){ var node = nodes[i]; if (node.nodeType == 3) { node.parentNode.removeChild(node); } }}function isUrl(url) { return url.indexOf("http://") == 0;}//窗口最大化function windowInit(){ width=screen.availWidth; height=screen.availHeight; window.moveTo(0,0); window.resizeTo(width,height);} ?
1 楼 pxx199248 2012-03-29 收藏楼，不错