function isEmail(emailad) {
var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
var check=/@[\w\-]+\./;
var checkend=/\.[a-zA-Z]{2,3}$/;
if(((emailad.search(exclude) != -1)||(emailad.search(check)) == -1)||(emailad.search(checkend) == -1)){
return false;
}else{
return true;
}
}
function isNumber(str) {
var ValidChars = "0123456789.-";
var err=0;
if(str.length>20) return false;
for (var i =0; i<str.length; i++) {
if (ValidChars.indexOf(str.charAt(i)) == -1) {
return false;
}
if (i==0&&((str.charAt(i)=='0'&&str.charAt(i)!='.')||str.charAt(i)=='.')) {
return false;
}
if (i!=0&&str.charAt(i)=='-') {
return false;
}
if (str.charAt(i)=='.') {
err++;
if(err==2) return false;
}
}
return true;
}
function isPhone(str) {
var valid = 1;
var ValidChars = "0123456789()-+ ";
if(str.length>20) valid=0;
for (var i =0; valid!=0&&i < str.length; i++) {
if (ValidChars.indexOf(str.charAt(i)) == -1) {
valid = 0;
}
}
return valid;
}
//判断是否为空，是返回true，否返回false
//function isEmpty(str) {
//    if(str=="") return true;
//    else return false;
//}
//判断是否为邮政编码，要求6位数字，是返回true，否返回false
function isZip(str) {
var reg=/^\d{6}$/;
return reg.test(str);
}
//判断是否为电子邮件，要求格式abc@alibaba.com，是返回true,否返回false
function isSimpleEmail(str) {
var reg=/^\S+@\S+\.\S+$/;
return reg.test(str);
}
//严格的email格式判断
function isEmailAddress(email) {
invalidChars = " /;,:{}[]|*%$#!()`<>?";
if (email == "") {
return false;
}
for (i=0; i< invalidChars.length; i++) {
badChar = invalidChars.charAt(i);
if (email.indexOf(badChar,0) > -1) {
return false;
}
}
pos = email.indexOf("@",1)
if (pos == -1) {
return false;
}
if (email.indexOf("@", pos+1) != -1) {
return false;
}
periodPos = email.indexOf(".",pos)
if(periodPos == -1) {
return false;
}
if ( pos + 2 > periodPos) {
return false;
}
if ( periodPos + 3 > email.length) {
return false;
}
return true;
}
//判断是否为网址，要求格式http://www.alibaba.com，是返回true,否返回false
function isWWW(str) {
var reg=/^http:\/\/\S+\.\S+$/;
return reg.test(str);
}
//判断是否为手机号码，要求11位数字，前二位为13，是返回true,否返回false
function isMobilePhone(str) {
var reg=/^13\d{9}$/;
return reg.test(str);
}
//判断是否为电话号码，要求格式0571-85022088，是返回true,否返回false
function isPhoneNum(str) {
var reg=/^0\d{2,3}-\d{6,8}$/;
return reg.test(str);
}
//判断是否是身份证号码
function isPersonID(str) {
if(isNumber(str) && (str.length==15 || str.length==18)) {
return true;
}
return false;
}
//判断是否为金额，要求格式最多2位小数，是返回true,否返回false
function isMoney(str) {
var reg=/^\d+\.{0,1}\d{0,2}$/;
return reg.test(str);
}
//判断是否为日期，要求格式2002-5-13或2002-05-13，是返回true,否返回false
function isDate(str) {
var flag;
//用正则表达式判断
var reg=/^\d{4}-\d{1,2}-\d{1,2}$/;
flag=reg.test(str);
if(flag==false) return flag;
//判断日期是否正确
var YMD;
YMD=str.split("-");
var year,month,date;            //年，月，日
year=parseInt(YMD[0]);
month=parseInt(YMD[1]);
date=parseInt(YMD[2]);
if(month>12 || month<1) return false;
if(date>31 || date<1) return false;
var maxDate=new Array(12);      //每月的最大日期
if(month==1) maxDate[0]=31;
if(month==2) maxDate[1]=28;
if(month==3) maxDate[2]=31;
if(month==4) maxDate[3]=30;
if(month==5) maxDate[4]=31;
if(month==6) maxDate[5]=30;
if(month==7) maxDate[6]=31;
if(month==8) maxDate[7]=31;
if(month==9) maxDate[8]=30;
if(month==10) maxDate[9]=31;
if(month==11) maxDate[10]=30;
if(month==12) maxDate[11]=31;
//闰月
if((year%4==0 && year%100!=0) || (year%400==0)) maxDate[1]=29;
if(maxDate[month-1]<date) return false;
else return true;
}
//判断用户按键是否为数字
function isNumPress() {
if(window.event.keyCode>=48&&window.event.keyCode<=57) return true;
else return false;
}
//判断用户按键是否为数字或回车
function isNumOrEnterPress() {
if((window.event.keyCode>=48 && window.event.keyCode<=57) || window.event.keyCode==13) return true;
else return false;
}
//字符串去除左右空格的方法
function trim(str) {
regExp1 = /^ */;
regExp2 = / *$/;
return str.replace(regExp1,'').replace(regExp2,'');
}
//显示问候语
function showHello() {
var greeting;
var d = new Date();
h = d.getHours();
if(h<6) {
greeting="凌晨好";
} else if (h<9) {
greeting="早上好";
} else if (h<12) {
greeting="上午好";
} else if (h<14) {
greeting="中午好";
} else if (h<17) {
greeting="下午好";
} else if (h<19) {
greeting="傍晚好";
} else if (h<22) {
greeting="晚上好";
} else {
greeting="夜里好";
}
document.write(greeting);
}
var whitespace = " \t\n\r";
function isWhitespace (s){
var i;
if (isEmpty(s))
return true;
for (i = 0; i < s.length; i++){
var c = s.charAt(i);
if (whitespace.indexOf(c) == -1) return false;
}
return true;
}
function hasWhitespace (s) {
var i;
for (i = 0; i < s.length; i++){
var c = s.charAt(i);
if (c == " ") {
return true;
}
}
return false;
}
//判断是否包含标点符号
function hasInterpunction(s) {
var i;
for (i = 0; i < s.length; i++){
var c = s.charAt(i);
if (c < "0") {
return true;
}
if (c > "9" && c < "A") {
return true;
}
if (c > "Z" && c < "a") {
return true;
}
if (c > "z" && c <= "~") {
return true;
}
}
return false;
}
function isEmpty(s){
return ((s == null) || (s.length == 0))
}
function visibleField(_field,_hs){
if (document.all){
if(_hs == 1) eval("document.all."+_field +".style.visibility='visible';");
if(_hs == 0) eval("document.all."+_field +".style.visibility='hidden';");
}else{
if (_hs=='1') eval("document.layers['"+_field+"'].visibility='show';");
if (_hs=='0') eval("document.layers['"+_field+"'].visibility='hide';");
}
}
function checkPhone (s){
var i;
if (isEmpty(s)){
if (checkPhone.arguments.length == 1){
return false;
}else{
return (checkPhone.arguments[1] == true);
}
}
for (i = 0; i < s.length; i++){
var c = s.charAt(i);
if(i == 0){
if(c == '(' ){
continue;
}
} else
if( i == 4 ){
if(c == ')'){
continue;
}
} else
if(i == 8){
if( c == '-'){
continue;
}
} else{
if (!isDigit(c)) return false;
}
}
return true;
}
function isDigit (c){
return ((c >= "0") && (c <= "9"))
}
function isInteger(getS){
var i;
if (isEmpty(getS))
if (isInteger.arguments.length == 1) return false;
else return (isInteger.arguments[1] == true);
for (i = 0; i < getS.length; i++)
{
var c = getS.charAt(i);
if (!isDigit(c)) return false;
}
return true;
}
function setCookie(name, value, expires, path, domain, secure) {
var caution = false
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "")
if (!caution || (name + "=" + escape(value)).length <= 4000)
document.cookie = curCookie
else
if (confirm("Cookie exceeds 4KB and will be cut!"))
document.cookie = curCookie
}
function getCookie(name) {
var prefix = name + "="
var cookieStartIndex = document.cookie.indexOf(prefix)
if (cookieStartIndex == -1)
return null
var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length)
if (cookieEndIndex == -1)
cookieEndIndex = document.cookie.length
return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex))
}
function deleteCookie(name, path, domain) {
if (getCookie(name)) {
document.cookie = name + "=" +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
"; expires=Thu, 01-Jan-70 00:00:01 GMT"
}
}
function encode(str) {
var result = "";
for (i = 0; i < str.length; i++) {
if (str.charAt(i) == " ") result += "+";
else if (str.charAt(i) == " ") result += "+";
else result += str.charAt(i);
}
return escape(result);
}
function decode(str) {
//	var result = "";
var result = str.replace(/\+/g, " ");
/*
for (i = 0; i< str.length; i++) {
if (str.charAt(i) == "+") result += " ";
else result += str.charAt(i);
}
*/
return unescape(result);
}
function encode1(str) {
str =  escape(str);
return str.replace(/\+/g, "%2B");
}
function newwin(url) {
var win = window.open(url,"newwin","toolbar=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=620,height=600");
win.focus();
}
function newupload(url) {
var win = window.open(url,"upload","toolbar=no,directories=no,status=no,menubar=no,scrollbars=yes,personal=no,menu=no,location=no,resizable=no,width=620,height=200");
win.focus();
}
function doBlink() {
// Blink, Blink, Blink...
var blink = document.all.tags("BLINK")
for (var i=0; i < blink.length; i++)
blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : ""
}
function startBlink() {
// Make sure it is IE4
if (document.all)
setInterval("doBlink()",1000)
}
function goback() {
if(window.document.forms[1].Done) {
window.location=window.document.forms[1].Done.value;
}
else if (window.document.forms[1].done) {
window.location=window.document.forms[1].done.value;
}
else {
history.go(-1)
}
}
function fullform() {
var myform = document.forms[1];
for(var i=0;i<myform.elements.length;i++) {
var element = myform.elements[i];
if (eval("typeof("+"cgi_"+element.name+")")=='undefined')
continue;
var jsvar = eval("cgi_"+element.name);
if (element.type=="select-one") {
for(var j=0;j<element.options.length;j++) {
var option = element.options[j];
if (option.value==eval("cgi_"+element.name)) {
option.selected=true;
break;
}
}
}
else if (element.type=="text") {
element.value=eval("cgi_"+element.name);
}
else if (element.type=="checkbox") {
jsvar = jsvar+",";
if (jsvar.indexOf(element.value+",")>-1) {
element.checked=true;
}
}
else if (element.type=="radio") {
if (jsvar==element.value)
element.checked=true;
}
else if (element.type=="textarea") {
element.value=jsvar;
}
}
}
function encode(url) {
}
//检查文本框字符长度(str文本框文本,minlen最小长度,maxlen最大长度)
function checkSize(str, minlen, maxlen) {
if(isEmpty(str)) {
alert("内容为空 ^O^");
return false;
}
else if(str.length < minlen || str.length > maxlen) {
alert("请调节一下内容大小 ^&^");
return false;
}
}
//长度为字符长度(不管单双字节)
function checkSize2(str, minlen, maxlen, objectName) {
if(isEmpty(str)) {
alert("“" + objectName + "”" + "内容为空 ^O^");
return false;
}
else if(str.length < minlen || str.length > maxlen) {
alert("请调节一下" + "“" + objectName + "”" + "内容大小 ^&^");
return false;
}
}
function getStrLength(str){
var length=0;
for (var i = 0; i < str.length; i++) {
var c = str.charCodeAt(i);
if (c < 128){
length=length+1;
}else{
length=length+2;
}
}
return length;
}
function drawImage(ImgD,width,height) {
var image=new Image();
image.src=ImgD.src;
if((width/image.width)>(height/image.height)) {
ImgD.height = height;
ImgD.width = (height/image.height)*image.width;
} else {
ImgD.width = width;
ImgD.height = (width/image.width)*image.height;
}
ImgD.alt = image.width + "x" + image.height;
}
function drawImageByStandard(ImgD,standard) {
var image=new Image();
image.src=ImgD.src;
if ((image.width > standard)  || (image.height > standard)) {
if (image.width > image.height){
ImgD.width = standard;
ImgD.height = (standard/image.width)*image.height;
} else {
ImgD.height = standard;
ImgD.width = (standard/image.height)*image.width;
}
}
}
function showimage(imageUrl,size) {
var imgObj = new Image()
imgObj.src = imageUrl;
if(imgObj.width > imgObj.height) {
document.write("<img src="+imgObj.src+" border=1  class=black-border height=" + imgObj.height*size/imgObj.width + " width=" + size + ">");
} else if(imgObj.width < imgObj.height) {
document.write("<img src="+imgObj.src+" border=1 class=black-border height=" + size + " width="+ imgObj.width*size/imgObj.height +">");
} else {
document.write("<img src="+imgObj.src+" border=1 class=black-border height=" + size + " width="+ size + " >");
}
}
function disableRefreshKey() {
if ( (event.keyCode == 8
&& (event.srcElement.type != "text"
&& event.srcElement.type != "textarea"
&& event.srcElement.Type != "password")) //屏蔽退格删除键
|| (event.keyCode==116) //屏蔽 F5 刷新键
|| (event.ctrlKey && event.keyCode==82) //Ctrl + R
|| (event.ctrlKey && event.keyCode==78) //屏蔽 Ctrl+n
|| (event.shiftKey&& event.keyCode==121) //屏蔽 shift+F10
|| (event.srcElement.tagName == "A" && event.shiftKey) //屏蔽 shift 加鼠标左键新开一网页
|| (event.altKey && event.keyCode==115)) { //屏蔽Alt+F4
event.keyCode=0;
event.returnValue=false;
}
}