请高手帮我改一下这个formcheck.js文件，感谢！
我新手都不算，完全不懂，就像去掉分类信息发布页面的EMAIL和TAG的检测，使用户不用填写也能发信息，l谢谢了。
var ValidFone = false;
var CheckQQ = false;
function gid(x) { return document.getElementById(x); }
function clearMe(x) {document.getElementById( 'info_ '+x+ '_hint ').innerHTML = ' ';}
function IsNumeric(sText) {
var ValidChars = "0123456789- ";
var IsNumber=true;
var Char;
for (i = 0; i < sText.length && IsNumber == true; i++)
{
Char = sText.charAt(i);
if (ValidChars.indexOf(Char) == -1)
{
IsNumber = false;
}
}
return IsNumber;
}
function isEmail(email) {
invalidChars = " ~\ '^\`\ "*+=\\|][(){}$&!#%/:,; ";
// Check for null
if (email == " ") {
return true;
}
// Check for invalid characters as defined above
for (i=0; i <invalidChars.length; i++) {
badChar = invalidChars.charAt(i);
if (email.indexOf(badChar,0) > -1) {
return false;
}
}
lengthOfEmail = email.length;
if ((email.charAt(lengthOfEmail - 1) == ". ") || (email.charAt(lengthOfEmail - 2) == ". ")) {
return false;
}
Pos = email.indexOf( "@ ",1);
if (email.charAt(Pos + 1) == ". ") {
return false;
}
while ((Pos < lengthOfEmail) && ( Pos != -1)) {
Pos = email.indexOf( ". ",Pos);
if (email.charAt(Pos + 1) == ". ") {
return false;
}
if (Pos != -1) {
Pos++;
}
}
// There must be at least one @ symbol
atPos = email.indexOf( "@ ",1);
if (atPos == -1) {
return false;
}
// But only ONE @ symbol
if (email.indexOf( "@ ",atPos+1) != -1) {
return false;
}
// Also check for at least one period after the @ symbol
periodPos = email.indexOf( ". ",atPos);
if (periodPos == -1) {
return false;
}
if (periodPos+3 > email.length) {
return false;
}
return true;
}
function itxt(el,s) {
document.getElementById(el+ '_hint ').innerHTML = s;
/*
if (!el)
return;
var tmpid = el + '_hint ';
else {
document.getElementById(tmpid).innerHTML = s;
}*/
}
function emp(id) {
if (document.getElementById(id).value == ' ')
return true;
/* - removed
else
return document.getElementById(id).value;
*/
}
function postcheck2() {
if (emp( 'info_title '))
itxt( 'info_title ', '请输入标题 ');
if (emp( 'info_contact '))
itxt( 'info_contact ', '请输入联系方式！ ');
if (ValidFone == true) {
if (IsNumeric(gid( 'info_contact ').value)) {
itxt( 'info_contact ', '不是有效的电话号码！ ');
}
}
if (CheckQQ == true) {
if (isNumeric(gid( 'info_qq ').value)) {
itxt( 'info_qq ', '无效QQ号码 ');
}
}
if (emp( 'info_mail '))
itxt( 'info_mail ', '请输入电子邮件地址！ ');
if (!emp( 'info_mail ') && !isEmail(gid( 'info_mail ').value))
itxt( 'info_mail ', '无效的email地址！ ');
if (emp( 'info_man '))
itxt( 'info_man ', '发布者不能为空！ ');
if (emp( 'tag1 ') && emp( 'tag2 ') && emp( 'tag3 '))
itxt( 'info_tag ', '请输入至少一个TAG！ ');
}
function postcheck() {
/*
if (Debug = true ) {
alert(document.getElementById( 'info_content ').value);
}
*/
if (emp( 'info_title ')) {
itxt( 'info_title ', '请输入标题！ ');
return false;
}
else if (emp( 'info_contact ')) {
itxt( 'info_contact ', '请输入联系方式！ ');
return false;
}
else if (emp( 'info_mail ')) {
itxt( 'info_mail ', '请输入您的邮箱地址！ ');
return false;
}
else if (!isEmail(gid( 'info_mail ').value)) {
itxt( 'info_mail ', '无效的email地址！ ');
return false;
}
else if (emp( 'info_man ')) {
itxt( 'info_man ', '发布者不能为空！ ');
return false;
}
else if (emp( 'tag1 ') && emp( 'tag2 ') && emp( 'tag3 ')) {
itxt( 'info_tag ', '请输入至少一个TAG！ ');
return false;
}
/*
else if (emp( 'info_content ')) {
itxt( 'info_content ', '请输入信息内容！ ');
return false;
}
*/
else {
/*
** quick fix 07/04/2006 - kast one
*/
//dc=document.frames[ 'info_content___Frame '].document.frames[0].document.getElementsByTagName( 'body ')[0].innerHTML;
// document.infopost.info_content.value=dc;
/* eof quickfix */
//alert(document.infopost.info_content.value);
//ajaxFormSubmit(document.infopost,document.getElementById( 'postArea '));
return true;
}
}
[解决办法]
var ValidFone = false;
var CheckQQ = false;
function gid(x) { return document.getElementById(x); }
function clearMe(x) {document.getElementById( 'info_ '+x+ '_hint ').innerHTML = ' ';}
function IsNumeric(sText) {
var ValidChars = "0123456789- ";
var IsNumber=true;
var Char;
for (i = 0; i < sText.length && IsNumber == true; i++)
{
Char = sText.charAt(i);
if (ValidChars.indexOf(Char) == -1)
{
IsNumber = false;
}
}
return IsNumber;
}
function isEmail(email) {
invalidChars = " ~\ '^\`\ "*+=\\|][(){}$&!#%/:,; ";
// Check for null
if (email == " ") {
return true;
}
// Check for invalid characters as defined above
for (i=0; i <invalidChars.length; i++) {
badChar = invalidChars.charAt(i);
if (email.indexOf(badChar,0) > -1) {
return false;
}
}
lengthOfEmail = email.length;
if ((email.charAt(lengthOfEmail - 1) == ". ") || (email.charAt(lengthOfEmail - 2) == ". ")) {
return false;
}
Pos = email.indexOf( "@ ",1);
if (email.charAt(Pos + 1) == ". ") {
return false;
}
while ((Pos < lengthOfEmail) && ( Pos != -1)) {
Pos = email.indexOf( ". ",Pos);
if (email.charAt(Pos + 1) == ". ") {
return false;
}
if (Pos != -1) {
Pos++;
}
}
// There must be at least one @ symbol
atPos = email.indexOf( "@ ",1);
if (atPos == -1) {
return false;
}
// But only ONE @ symbol
if (email.indexOf( "@ ",atPos+1) != -1) {
return false;
}
// Also check for at least one period after the @ symbol
periodPos = email.indexOf( ". ",atPos);
if (periodPos == -1) {
return false;
}
if (periodPos+3 > email.length) {
return false;
}
return true;
}
function itxt(el,s) {
document.getElementById(el+ '_hint ').innerHTML = s;
/*
if (!el)
return;
var tmpid = el + '_hint ';
else {
document.getElementById(tmpid).innerHTML = s;
}*/
}
function emp(id) {
if (document.getElementById(id).value == ' ')
return true;
/* - removed
else
return document.getElementById(id).value;
*/
}
function postcheck2() {
if (emp( 'info_title '))
itxt( 'info_title ', '请输入标题 ');
if (emp( 'info_contact '))
itxt( 'info_contact ', '请输入联系方式！ ');
if (ValidFone == true) {
if (IsNumeric(gid( 'info_contact ').value)) {
itxt( 'info_contact ', '不是有效的电话号码！ ');
}
}
if (CheckQQ == true) {
if (isNumeric(gid( 'info_qq ').value)) {
itxt( 'info_qq ', '无效QQ号码 ');
}
}
if (!emp( 'info_mail ') && !isEmail(gid( 'info_mail ').value))
itxt( 'info_mail ', '无效的email地址！ ');
if (emp( 'info_man '))
itxt( 'info_man ', '发布者不能为空！ ');
}
function postcheck() {
/*
if (Debug = true ) {
alert(document.getElementById( 'info_content ').value);
}
*/
if (emp( 'info_title ')) {
itxt( 'info_title ', '请输入标题！ ');
return false;
}
else if (emp( 'info_contact ')) {
itxt( 'info_contact ', '请输入联系方式！ ');
return false;
}
else if (!isEmail(gid( 'info_mail ').value)) {
itxt( 'info_mail ', '无效的email地址！ ');
return false;
}
else if (emp( 'info_man ')) {
itxt( 'info_man ', '发布者不能为空！ ');
return false;
}
/*
else if (emp( 'info_content ')) {
itxt( 'info_content ', '请输入信息内容！ ');
return false;
}
*/
else {
/*
** quick fix 07/04/2006 - kast one
*/
//dc=document.frames[ 'info_content___Frame '].document.frames[0].document.getElementsByTagName( 'body ')[0].innerHTML;
// document.infopost.info_content.value=dc;
/* eof quickfix */
//alert(document.infopost.info_content.value);
//ajaxFormSubmit(document.infopost,document.getElementById( 'postArea '));
return true;
}
}
