//字符处理;
//去左右空格;
function trim(s){
return rtrim(ltrim(s));
}
//去左空格;
function ltrim(s){
return s.replace( /^\s*/, "");
}
//去右空格;
function rtrim(s){
return s.replace( /\s*$/, "");
}
//过滤HTML字符
function HTML(text){
text = text.replace(/&/g, "&");
// text = text.replace(/"/g, """);
text = text.replace(/</g, "<");
text = text.replace(/>/g, ">");
text = text.replace(/'/g, "’");
return text ;
}
//还原HTML字符
function ReHTML(text){
text = text.replace(/&/g, "&");
// text = text.replace(/"/g, '"');
// text = text.replace(/</g, "<");
text = text.replace(/>/g, ">");
text = text.replace(/’/g, "'");
return text ;
}
// 判断中英文混排时候的长度
function byteLength (sStr) {
aMatch = sStr.match(/[^\x00-\x80]/g);
return (sStr.length + (! aMatch ? 0 : aMatch.length));
}
//验证信息;
//空字符值;
function isEmpty(s){
s = trim(s);
return s.length == 0;
}
//Email;
function isEmail(s){
s = trim(s);
var p = /^[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.){1,4}[a-z]{2,3}$/i;
return p.test(s);
}
//数字;
function isNumber(s){
return !isNaN(s);
}
//颜色值;
function isColor(s){
s = trim(s);
if (s.length !=7) return false;
return s.search(/\#[a-fA-F0-9]{6}/) != -1;
}
//手机号码;
function isMobile(s){
s = trim(s);
var p = /13\d{9}/;
return p.test(s);
}
//身份证;
function isCard(s){
s = trim(s);
var p = /^\d{15}(\d{2}[xX0-9])?$/;
return p.test(s);
}
//URL;
function isURL(s){
s = trim(s).toLowerCase();
var p = /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/;
return p.test(s);
}
//----------------------------------------------------检查是否为电话号码
function fucCheckTEL(TEL)
{
var i,j,strTemp;
strTemp="0123456789-()# ";
for (i=0;i<TEL.length;i++)
{
j=strTemp.indexOf(TEL.charAt(i));
if (j==-1)
{
return false;
}
}
return true;
}
//----------------------------------------------------严格电话号码的验证
要求:
(1)电话号码由数字、"("、")"和"-"构成
(2)电话号码为3到8位
(3)如果电话号码中包含有区号,那么区号为三位或四位
(4)区号用"("、")"或"-"和其他部分隔开
(5)移动电话号码为11或12位,如果为12位,那么第一位为0
(6)11位移动电话号码的第一位和第二位为"13"
(7)12位移动电话号码的第二位和第三位为"13"
根据这几条规则,可以与出以下正则表达式:
(^[0-9]{3,4}\-[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)
<script language="javascript">
function PhoneCheck(s) {
var str=s;
var reg=/(^[0-9]{3,4}\-[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)/
alert(reg.test(str));
}
</script>
<input type=text name="iphone">
<input type=button onclick="PhoneCheck(document.all.iphone.value)" value="Check">
//具有在输入非数字字符不回显的效果,即对非数字字符的输入不作反应。
function numbersonly(field,event){
var key,keychar;
if(window.event){
key = window.event.keyCode;
}
else if (event){
key = event.which;
}
else{
return true
}
keychar = String.fromCharCode(key);
if((key == null)||(key == 0)||(key ==
||(key == 9)||(key == 13)||(key == 27)){
return true;
}
else if(("0123456789.").indexOf(keychar)>-1){
window.status = "";
return true;
}
else {
window.status = "Field excepts numbers only";
return false;
}
}
//Zip;
function isZip(s){
s = trim(s);
var p = /^[1-9]\d{5}$/;
return p.test(s);
}
//Double;
function isDouble(s){
s = trim(s);
var p = /^[-\+]?\d+(\.\d+)?$/;
return p.test(s);
}
//Integer;
function isInteger(s){
s = trim(s);
var p = /^[-\+]?\d+$/;
return p.test(s);
}
//English;
function isEnglish(s){
s = trim(s);
var p = /^[A-Za-z]+$/;
return p.test(s);
}
//中文;
function isChinese(s){
s = trim(s);
var p = /^[\u0391-\uFFE5]+$/;
return p.test(s);
}
//双字节
function isDoubleChar(s){
var p = /^[^\x00-\xff]+$/;
return p.test(s);
}
//含有中文字符
function hasChineseChar(s){
var p = /[^\x00-\xff]/;
return p.test(s);
}
//15位以内字母,数字,下划线
function hasAccountChar(s){
var p = /^[a-zA-Z0-9][a-zA-Z0-9_-]{0,15}$/;
return p.test(s);
}
//限定长度
function limitLen(s,Min,Max){
s=trim(s);
if(s=="") return false;
if((s.length<Min)||(s.length>Max))
return false;
else
return true;
}
只能输入汉字:“^[u4e00-u9fa5],{0,}$”
7或8位电话号码:/^\d{8}|\d{7}$/