格式
null 是否为空判断
num 数字
ab 字母
chs 汉字
bit 位数
phone 电话格式
email 电子邮件格式
http 格式
*/
function check_null(check_obj){
var str = '';
for(i = 0; i < check_obj.length; i++) {
str = str + ' ';
}
return (str == check_obj);
}
function check_num(check_obj){
var i,j,strTemp;
//abcdefghijklmnopqrstuvwxyz
strTemp="0123456789";
if ( check_obj.length== 0)
return false;
for (i=0;i<check_obj.length;i++)
{
j=strTemp.indexOf(check_obj.charAt(i));
if (j==-1)
{
return false;
}
}
return true;
}
function check_ab(check_obj){
var i,j,strTemp;
strTemp="abcdefghijklmnopqrstuvwxyz";
if ( check_obj.length== 0)
return false;
for (i=0;i<check_obj.length;i++)
{
j=strTemp.indexOf(check_obj.charAt(i));
if (j==-1)
{
return false;
}
}
return true;
}
function check_chs(check_obj){
if(check_obj.search(/[^\x00-\x80]/)>=0){
return true;
}else{
return false;
}
}
function check_bit(check_obj,bit_obj){
arry_str = bit_obj.split('_');
var obj_length = check_obj.length;
switch(arry_str[2]){
case ">":
if(obj_length>arry_str[1]){
return true;
}
break;
case "<":
if(obj_length<arry_str[1]){
return true;
}
break;
case ">=":
if(obj_length>=arry_str[1]){
return true;
}
break;
case "<=":
if(obj_length<=arry_str[1]){
return true;
}
break;
}
return false;
}
function check_phone(check_obj){
if(check_obj.search(/[0-9]{4}\-[0-9]*/)>=0){
return true;
}else{
return false;
}
}
function check_email(check_obj){
if(check_obj.search(/^[\w-]+@[\w-]+\.[A-Za-z0-9]{2,}$/)>=0){
return true;
}else{
return false;
}
}
function check_http(check_obj){
if(check_obj.search(/^https?:\/\/((\w|-)+\.)+\w+\/?$/i)>=0){
return true;
}else{
return false;
}
}
/*************************************************
* 函数用途:自动检测表单
* 参数:form_name 要提交的form对象名字
* input_arry 要检测input控件对象组
* input_arry参数数组的第一个位置是
* 控件的名字，第二个位置是如果出错
* 要显示的错误信息字符串，第三个位
* 置是检测范围标志，如果多标志可以
* 用,分开。例如'num,null'不能空，
* 并且只能为数字
*/
function auto_check_form(form_name,input_arry){
for(var num in input_arry){
alert('ok');
alert_flag=0;
arry_str = input_arry[num][2].split(',');
for(var es_num in arry_str){
switch(arry_str[es_num]){
case "null":
if(check_null(input_arry[num][0].value)==true){
alert_flag=1;
}
break;
case "num":
if(check_num(input_arry[num][0].value)==false){
alert_flag=1;
}
break
case "ab":
if(check_ab(input_arry[num][0].value)==false){
alert_flag=1;
}
break;
case "chs":
if(check_chs(input_arry[num][0].value)==false){
alert_flag=1;
}
break;
case "phone":
if(check_phone(input_arry[num][0].value)==false){
alert_flag=1;
}
break;
case "email":
if(check_email(input_arry[num][0].value)==false){
alert_flag=1;
}
break;
case "http":
if(check_http(input_arry[num][0].value)==false){
alert_flag=1;
}
break;
default:
}
if(arry_str[es_num].search(/bit_*/)>=0){
if(check_bit(input_arry[num][0].value,arry_str[es_num])==false){
alert_flag=1;
}
}
}
if(alert_flag==1){
alert(input_arry[num][1]);
return 0;
}
}
form_name.submit();
}
注：checkspace函数是检测是否为空
html方调用通过数组和控件对象名字，对比模式的方式来得到更多的判断支持，比如第2个参数中数组的第3个参数可以这样写:
onclick=“auto_check_form(test1,
[
[text_1,'不能空并且只能是数字','null,num'],
[text_2,'不能为空只能为字母','null,ab'],
[text_3,'不能小于9位','null,num,bit_9_>'],
[text_4,'电话号码输入错误','null,phone,bit_13_<='],
[text_5,'请输入汉字做名字','null,chs,bit_6_>']
]);">“
null,phone,bit_13_<=这些都是匹配符。
¢//校验是否全由数字组成
function isDigit(s)
{
var patrn=/^[0-9]{1,20}$/;
if (!patrn.exec(s)) return false
return true
}
//校验登录名：只能输入5-20个以字母开头、可带数字、“_”、“.”的字串
function isRegisterUserName(s)
{
var patrn=/^[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}$/;
if (!patrn.exec(s)) return false
return true
}
//校验用户姓名：只能输入1-30个以字母开头的字串
function isTrueName(s)
{
var patrn=/^[a-zA-Z]{1,30}$/;
if (!patrn.exec(s)) return false
return true
}
//校验密码：只能输入6-20个字母、数字、下划线
function isPasswd(s)
{
var patrn=/^(\w){6,20}$/;
if (!patrn.exec(s)) return false
return true
}
//校验普通电话、传真号码：可以“+”开头，除数字外，可含有“-”
function isTel(s)
{
//var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?(\d){1,12})+$/;
var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/;
if (!patrn.exec(s)) return false
return true
}
//校验手机号码：必须以数字开头，除数字外，可含有“-”
function isMobil(s)
{
var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/;
if (!patrn.exec(s)) return false
return true
}
//校验邮政编码
function isPostalCode(s)
{
//var patrn=/^[a-zA-Z0-9]{3,12}$/;
var patrn=/^[a-zA-Z0-9 ]{3,12}$/;
if (!patrn.exec(s)) return false
return true
}
//校验搜索关键字
function isSearch(s)
{
var patrn=/^[^`~!@#$%^&*()+=|\\\][\]\{\}:;\'\,.<>/?]{1}[^`~!@$%^&()+=|\\\][\]\{\}:;\'\,.<>?]{0,19}$/;
if (!patrn.exec(s)) return false
return true
}
function isIP(s) //by zergling
{
var patrn=/^[0-9.]{1,20}$/;
if (!patrn.exec(s)) return false
return true
}
¢//校验是否全由数字组成
function isDigit(s)
{
var patrn=/^[0-9]{1,20}$/;
if (!patrn.exec(s)) return false
return true
}
//校验登录名：只能输入5-20个以字母开头、可带数字、“_”、“.”的字串
function isRegisterUserName(s)
{
var patrn=/^[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}$/;
if (!patrn.exec(s)) return false
return true
}
//校验用户姓名：只能输入1-30个以字母开头的字串
function isTrueName(s)
{
var patrn=/^[a-zA-Z]{1,30}$/;
if (!patrn.exec(s)) return false
return true
}
//校验密码：只能输入6-20个字母、数字、下划线
function isPasswd(s)
{
var patrn=/^(\w){6,20}$/;
if (!patrn.exec(s)) return false
return true
}
//校验普通电话、传真号码：可以“+”开头，除数字外，可含有“-”
function isTel(s)
{
//var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?(\d){1,12})+$/;
var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/;
if (!patrn.exec(s)) return false
return true
}
//校验手机号码：必须以数字开头，除数字外，可含有“-”
function isMobil(s)
{
var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/;
if (!patrn.exec(s)) return false
return true
}
//校验邮政编码
function isPostalCode(s)
{
//var patrn=/^[a-zA-Z0-9]{3,12}$/;
var patrn=/^[a-zA-Z0-9 ]{3,12}$/;
/*********************************************************************************
* FUNCTION: isBetween
* PARAMETERS: val AS any value
* lo AS Lower limit to check
* hi AS Higher limit to check
* CALLS: NOTHING
* RETURNS: TRUE if val is between lo and hi both inclusive, otherwise false.
**********************************************************************************/
function isBetween (val, lo, hi) {
if ((val < lo) || (val > hi)) { return(false); }
else { return(true); }
}
/*********************************************************************************
* FUNCTION: isDate checks a valid date
* PARAMETERS: theStr AS String
* CALLS: isBetween, isInt
* RETURNS: TRUE if theStr is a valid date otherwise false.
**********************************************************************************/
function isDate (theStr) {
var the1st = theStr.indexOf('-');
var the2nd = theStr.lastIndexOf('-');
if (the1st == the2nd) { return(false); }
else {
var y = theStr.substring(0,the1st);
var m = theStr.substring(the1st+1,the2nd);
var d = theStr.substring(the2nd+1,theStr.length);
var maxDays = 31;
if (isInt(m)==false || isInt(d)==false || isInt(y)==false) {
return(false); }
else if (y.length < 4) { return(false); }
else if (!isBetween (m, 1, 12)) { return(false); }
else if (m==4 || m==6 || m==9 || m==11) maxDays = 30;
else if (m==2) {
if (y % 4 > 0) maxDays = 28;
else if (y % 100 == 0 && y % 400 > 0) maxDays = 28;
else maxDays = 29;
}
if (isBetween(d, 1, maxDays) == false) { return(false); }
else { return(true); }
}
}
/********************************************************************************
* FUNCTION: Compare Date! Which is the latest!
* PARAMETERS: lessDate,moreDate AS String
* CALLS: isDate,isBetween
* RETURNS: TRUE if lessDate<moreDate
*********************************************************************************/
function isComdate (lessDate , moreDate)
{
if (!isDate(lessDate)) { return(false);}
if (!isDate(moreDate)) { return(false);}
var less1st = lessDate.indexOf('-');
var less2nd = lessDate.lastIndexOf('-');
var more1st = moreDate.indexOf('-');
var more2nd = moreDate.lastIndexOf('-');
var lessy = lessDate.substring(0,less1st);
var lessm = lessDate.substring(less1st+1,less2nd);
var lessd = lessDate.substring(less2nd+1,lessDate.length);
var morey = moreDate.substring(0,more1st);
var morem = moreDate.substring(more1st+1,more2nd);
var mored = moreDate.substring(more2nd+1,moreDate.length);
var Date1 = new Date(lessy,lessm,lessd);
var Date2 = new Date(morey,morem,mored);
if (Date1>Date2) { return(false);}
return(true);
}
/*********************************************************************************
* FUNCTION isEmpty checks if the parameter is empty or null
* PARAMETER str AS String
**********************************************************************************/
function isEmpty (str) {
if ((str==null)||(str.length==0)) return true;
else return(false);
}
/*********************************************************************************
* FUNCTION isAllEmpty checks if all the character is empty or null
* PARAMETER str AS String
**********************************************************************************/
function isAllEmpty (str)
{
if ((str==null)||(str.length==0)) return true;
else
{
for (var i=0; i<str.length; i++)
{
if (str.substring(i,i+1)!=" ") return false;
}
return true
}
}
/*********************************************************************************
* FUNCTION: isInt
* PARAMETER: theStr AS String
* RETURNS: TRUE if the passed parameter is an integer, otherwise FALSE
* CALLS: isDigit
**********************************************************************************/
function isInt (theStr) {
var flag = true;
if (isEmpty(theStr)) { flag=false; }
else
{ for (var i=0; i<theStr.length; i++) {
if (isDigit(theStr.substring(i,i+1)) == false) {
flag = false; break;
}
}
}
return(flag);
}
/*********************************************************************************
* FUNCTION: isReal
* PARAMETER: heStr AS String
decLen AS Integer (how many digits after period)
* RETURNS: TRUE if theStr is a float, otherwise FALSE
* CALLS: isInt
**********************************************************************************/
function isReal (theStr, decLen) {
var dot1st = theStr.indexOf('.');
var dot2nd = theStr.lastIndexOf('.');
var OK = true;
if (isEmpty(theStr)) return false;
if (dot1st == -1) {
if (!isInt(theStr)) return(false);
else return(true);
}
else if (dot1st != dot2nd) return (false);
else if (dot1st==0) return (false);
else {
var intPart = theStr.substring(0, dot1st);
var decPart = theStr.substring(dot2nd+1);
if (decPart.length > decLen) return(false);
else if (!isInt(intPart) || !isInt(decPart)) return (false);
else if (isEmpty(decPart)) return (false);
else return(true);
}
}
/*********************************************************************************
* FUNCTION: isEmail
* PARAMETER: String (Email Address)
* RETURNS: TRUE if the String is a valid Email address
* FALSE if the passed string is not a valid Email Address
* EMAIL FORMAT: AnyName@EmailServer e.g; webmaster@hotmail.com
* @ sign can appear only once in the email address.
*********************************************************************************/
function isEmail (theStr) {
var atIndex = theStr.indexOf('@');
var dotIndex = theStr.indexOf('.', atIndex);
var flag = true;
theSub = theStr.substring(0, dotIndex+1)
if ((atIndex < 1)||(atIndex != theStr.lastIndexOf('@'))||(dotIndex < atIndex + 2)||(theStr.length <= theSub.length))
{ return(false); }
else { return(true); }
}
/*********************************************************************************
* FUNCTION: newWindow
* PARAMETERS: doc -> Document to open in the new window
hite -> Height of the new window
wide -> Width of the new window
bars -> 1-Scroll bars = YES 0-Scroll Bars = NO
resize -> 1-Resizable = YES 0-Resizable = NO
* CALLS: NONE
* RETURNS: New window instance
**********************************************************************************/
function newWindow (doc, wide, hite, bars, resize) {
var opt="toolbar=0,location=0,directories=0,status=0,menubar=0,";
var l = Math.floor((screen.width-wide)/2);
var t = Math.floor((screen.height-hite)/2);
opt+=("scrollbars="+bars+",");
opt+=("resizable="+resize+",");
opt+=("width="+wide+",");
opt+=("height="+hite+",");
opt+=("top="+t+",");
opt+=("left="+l);
winHandle=window.open(doc,'',opt);
return;
}
//校验数字：0-9数字的组合
function isDigit(s)
{
var patrn=/^[0-9]{1,20}$/;
if (!patrn.exec(s)) return false
return true
}