<html>
<!--//this code by hongseheike-->
<head>
<script language="javascript">
function checkDate(str)
{
var pattern = /^((\d{4})|(\d{2}))/(\d{1,2})/(\d{1,2})$/g;
alert(str);
//校验格式，如果格式不匹配，返回
if(!pattern.test(str))
{
alert("格式不匹配（YYYY-MM-DD 或 YY-MM-DD）！");
return false;
}
var arrDate = str.split("-");
//支持年份只输入两位数字
if(parseInt(arrDate[0]) < 100)
arrDate[0] = 2000 + parseInt(arrDate[0]) + "";
//看是否在2000-1-1与2099-12-31之间
var numDate = parseInt(arrDate[0]+((parseInt(arrDate[1])<10)?("0"+arrDate[1]):arrDate[1])+""
+((parseInt(arrDate[2])<10)?("0"+arrDate[2]):arrDate[2])+"");
if(!((numDate)>=20000101&&(numDate)<=20991231))
{
alert("必须位于2000-1-1与2099-12-31之间！");
return false;
}
//验证日期合法性
var date = new Date(arrDate[0],(parseInt(arrDate[1]) -1)+"",arrDate[2]);
if(date.getYear() == arrDate[0]
&& date.getMonth() == (parseInt(arrDate[1]) -1)+""
&& date.getDate() == arrDate[2])
{
alert("校验通过！");
return true;
}
else
{
alert("日期不合法！");
return false;
}
}
ns4 = (document.layers) ? true : false;
ie4 = (document.all) ? true : false;
function keyDown(e){
alert(event.keyCode);
if(ns4){
var nkey=e.which;
var iekey='现在是ns浏览器';
var realkey=String.fromCharCode(e.which);
}
if(ie4){
var iekey=event.keyCode;
var nkey='现在是ie浏览器';
var realkey=String.fromCharCode(event.keyCode);
if(event.keyCode==32){realkey='\' 空格\''}
if(event.keyCode==13){realkey='\' 回车\''}
if(event.keyCode==27){realkey='\' Esc\''}
if(event.keyCode==16){realkey='\' Shift\''}
if(event.keyCode==17){realkey='\' Ctrl\''}
if(event.keyCode==18){realkey='\' Alt\''}
}
alert('ns浏览器中键值:'+nkey+'\n'+'ie浏览器中键值:'+iekey+'\n'+'实际键为'+realkey);
}
document.onkeydown = keyDown;
if(ns4){
document.captureEvents(Event.KEYDOWN);}
</script>
<script language="JavaScript">
//去掉空格
function Trim(str){
if(str.charAt(0) == " "){
str = str.slice(1);
str = Trim(str);
}
return str;
}
//判断是否是空
function isEmpty(pObj,errMsg){
var obj = eval(pObj);
if( obj == null || Trim(obj.value) == ""){
if (errMsg == null || errMsg =="")
alert("输入为空!");
else
alert(errMsg);
obj.focus();
return false;
}
return true;
}
//判断是否是数字
function isNumber(pObj,errMsg){
var obj = eval(pObj);
strRef = "1234567890";
if(!isEmpty(pObj,errMsg))return false;
for (i=0;i<obj.value.length;i++) {
tempChar= obj.value.substring(i,i+1);
if (strRef.indexOf(tempChar,0)==-1) {
if (errMsg == null || errMsg =="")
alert("数据不符合要求,请检查");
else
alert(errMsg);
if(obj.type=="text")
obj.focus();
return false;
}
}
return true;
}
//判断是否是数字,数字可以为负数
function isNegative(pObj,errMsg){
var obj = eval(pObj);
strRef = "1234567890-";
if(!isEmpty(pObj,errMsg))return false;
for (i=0;i<obj.value.length;i++) {
tempChar= obj.value.substring(i,i+1);
if (strRef.indexOf(tempChar,0)==-1) {
if (errMsg == null || errMsg =="")
alert("数据不符合要求,请检查");
else
alert(errMsg);
if(obj.type=="text")
obj.focus();
return false;
}else{
if(i>0){
if(obj.value.substring(i,i+1)=="-"){
if (errMsg == null || errMsg =="")
alert("数据不符合要求,请检查");
else
alert(errMsg);
if(obj.type=="text")
obj.focus();
return false;
}
}
}
}
return true;
}
判断是否是钱的形式
function isMoney(pObj,errMsg){
var obj = eval(pObj);
strRef = "1234567890.";
if(!isEmpty(pObj,errMsg)) return false;
for (i=0;i<obj.value.length;i++) {
tempChar= obj.value.substring(i,i+1);
if (strRef.indexOf(tempChar,0)==-1) {
if (errMsg == null || errMsg =="")
alert("数据不符合要求,请检查");
else
alert(errMsg);
if(obj.type=="text")
obj.focus();
return false;
}else{
tempLen=obj.value.indexOf(".");
if(tempLen!=-1){
strLen=obj.value.substring(tempLen+1,obj.value.length);
if(strLen.length>2){
if (errMsg == null || errMsg =="")
alert("数据不符合要求,请检查");
else
alert(errMsg);
if(obj.type=="text")
obj.focus();
return false;
}
}
}
}
return true;
}
function isLeapYear(year)
{
if((year%4==0&&year%100!=0)||(year%400==0))
{
return true;
}
return false;
}
//判断时间是否正确
function isDate(checktext){
var datetime;
var year,month,day;
var gone,gtwo;
if(Trim(checktext.value)!=""){
datetime=Trim(checktext.value);
if(datetime.length==10){
year=datetime.substring(0,4);
if(isNaN(year)==true){
alert("请输入日期!格式为(yyyy-mm-dd) \n例(2001-01-01)！");
checktext.focus();
return false;
}
gone=datetime.substring(4,5);
month=datetime.substring(5,7);
if(isNaN(month)==true){
alert("请输入日期!格式为(yyyy-mm-dd) \n例(2001-01-01)！");
checktext.focus();
return false;
}
gtwo=datetime.substring(7,8);
day=datetime.substring(8,10);
if(isNaN(day)==true){
alert("请输入日期!格式为(yyyy-mm-dd) \n例(2001-01-01)！");
checktext.focus();
return false;
}
if((gone=="/")&&(gtwo=="/")){
if(month<1||month>12) {
alert("月份必须在01和12之间!");
checktext.focus();
return false;
}
if(day<1||day>31){
alert("日期必须在01和31之间!");
checktext.focus();
return false;
}else{
if(month==2){
if(isLeapYear(year)&&day>29){
alert("二月份日期必须在01到29之间!");
checktext.focus();
return false;
}
if(!isLeapYear(year)&&day>28){
alert("二月份日期必须在01到28之间!");
checktext.focus();
return false;
}
}
if((month==4||month==6||month==9||month==11)&&(day>30)){
alert("在四，六，九，十一月份 \n日期必须在01到30之间!");
checktext.focus();
return false;
}
}
}else{
alert("请输入日期!格式为(yyyy-mm-dd) \n例(2001-01-01)");
checktext.focus();
return false;
}
}else{
alert("请输入日期!格式为(yyyy-mm-dd) \n例(2001-01-01)");
checktext.focus();
return false;
}
}else{
return true;
}
return true;
}
</script>
<script language="JavaScript">
function checked(theform){
if (!isEmpty(theform.aa,'请输入数据')) return false;
}
</script>
</head>
<body>
<!--keycode 9 = Tab Tab
keycode 12 = Clear
keycode 13 = Enter
keycode 16 = Shift_L
keycode 17 = Control_L
keycode 18 = Alt_L
keycode 19 = Pause
keycode 20 = Caps_Lock
keycode 27 = Escape Escape
keycode 32 = space space
keycode 33 = Prior
keycode 34 = Next
keycode 35 = End
keycode 36 = Home
keycode 37 = Left
keycode 38 = Up
keycode 39 = Right
keycode 40 = Down
keycode 41 = Select
keycode 42 = Print
keycode 43 = Execute
keycode 45 = Insert
keycode 46 = Delete
keycode 47 = Help
keycode 48 = 0 equal braceright
keycode 49 = 1 exclam onesuperior
keycode 50 = 2 quotedbl twosuperior
keycode 51 = 3 section threesuperior
keycode 52 = 4 dollar
keycode 53 = 5 percent
keycode 54 = 6 ampersand
keycode 55 = 7 slash braceleft
keycode 56 = 8 parenleft bracketleft
keycode 57 = 9 parenright bracketright
keycode 65 = a A
keycode 66 = b B
keycode 67 = c C
keycode 68 = d D
keycode 69 = e E EuroSign
keycode 70 = f F
keycode 71 = g G
keycode 72 = h H
keycode 73 = i I
keycode 74 = j J
keycode 75 = k K
keycode 76 = l L
keycode 77 = m M mu
keycode 78 =
常用javascript验证功能
需积分: 9 107 浏览量
2009-02-02
11:11:35
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