JS Script Input Control Summary

1. Detection user name can only be made up of Chinese and English, numbers and underscores, can not use other symbols, the user name is already exist

function Checkloginaccount () {
var msg = ';
var nameid1 = document.getElementById ("login_name"). Value;
if (Nameid1.length < 4 | | nameid1.length > 20) {
msg = "User name length can only be between 4-20-bit characters";
Alert (msg);
return false;
}
else {
for (var index = 0; index < nameid1.length; index++) {
c = Nameid1.charat (index);
c = C.touppercase ();
if (! ( (c >= "A" && C <= "Z") | | (c >= "0" && C <= "9") | | c = = "_" | | c>= "\u4e00" &&c<= "\u9fa5") {
msg = "User name can only be made up of Chinese, English, numerals and underscores, cannot use other symbols";
Alert (msg);
return false;
}
}
}
var params = {loginName: $ (' #login_name '). Val ()};
$.post ("Userregistercheckloginname", params, function (data) {//user name already exists
if (Data.result = = "Error") {
RetVal = false;
msg = "The account already exists, please modify";
Alert (msg);
document.getElementById ("Regnamehint"). InnerHTML = msg;//This sentence is displayed somewhere in the page, usually after the detection input box, but to define DIV or other, id//For Regnamehi Nt
} else if (Data.result = = "Success") {
RetVal = true;
}
}, "JSON");
R Eturn RetVal;
}

2. Detect the password entered two times the password is consistent, whether it conforms to the specifications

function Checkpassword () {
var userpwd = document.getElementById ("pwd"). Value;
var pwdrepeat = document.getElementById ("Rpwd"). Value;
if (Userpwd.length < 6 | | userpwd.length > 20)
{
msg = "Password length 6-20 characters, please re-enter";
Alert (msg);
return false;
} else {
if (userpwd!== pwdrepeat) {
msg = "does not match the password entered for the first time!" ";
Alert (msg);
return false;
}
else {
return true;
}
}
}

3. Check whether the input mobile phone number meets the requirements

function Checkphone () {
var link_phone = document.getElementById ("Link_phone"). Value;
if (link_phone.length! = 11) {
msg = "Cell phone number format is not correct, please re-enter";
Alert (msg);
return false;
}
for (var index = 0; index < link_phone.length; index++) {
c = Link_phone.charat (index);
if (! ( C >= "0" && C <= "9")) {
msg = "Cell phone number format is not correct, please re-enter";
Alert (msg);
return false;
}
}

return true;
}

Note: You need to introduce <script src= "Xx/jquery.js" type= "Text/javascript" ></script>//xx as a relative path before use

JS Script Input Control Summary