[英]How to validate for letters only in this specific script - javascript
I would need a little help of you today, i'm wondering how can i validate my script for letters only on first 2 inputs? 我今天需要您的帮助,我想知道如何才能仅对前2个输入验证字母的脚本?
I'm using javascript to validate my form below: I have managed to validate for email though and zip (numbers only)... 我正在使用javascript验证以下表单:尽管设法验证了电子邮件和zip(仅数字)...
<html>
<head>
<title>Form Validation</title>
<script type="text/javascript">
<!--
function checkForEmail()
{
var emailID = document.myForm.EMail.value;
atpos = emailID.indexOf("@");
dotpos = emailID.lastIndexOf(".");
if (atpos < 1 || ( dotpos - atpos < 2 ))
{
alert("Alert")
document.myForm.EMail.focus() ;
return false;
}
return( true );
}
function validate()
{
if( document.myForm.Name.value == "" )
{
alert( "Alert" );
document.myForm.Name.focus() ;
return false;
}
if( document.myForm.Surname.value == "" )
{
alert( "Alert" );
document.myForm.Surname.focus() ;
return false;
}
if( document.myForm.EMail.value == "" )
{
alert( "Alert" );
document.myForm.EMail.focus() ;
return false;
}else{
var ret = checkForEmail();
if( ret == false )
{
return false;
}
}
if( document.myForm.zip.value == "" ||
isNaN( document.myForm.zip.value ) ||
document.myForm.zip.value.length != 13 )
{
alert( "Alert" );
document.myForm.zip.focus() ;
return false;
}
return( true );
}
//-->
</script>
</head>
<body>
<form action="/cgi-bin/test.cgi" name="myForm" onsubmit="return(validate());">
<table cellspacing="2" cellpadding="2" border="1">
<tr>
<td align="right">Name</td>
<td><input type="text" name="Name" /></td>
</tr>
<tr>
<td align="right">Surname</td>
<td><input type="text" name="Surname" /></td>
</tr>
<tr>
<td align="right">EMail</td>
<td><input type="text" name="EMail" /></td>
</tr>
<tr>
<td align="right">zip</td>
<td><input type="text" name="zip" /></td>
</tr>
<tr>
<td align="right"></td>
<td><input type="submit" value="Submit" /></td>
</tr>
</table>
</form>
</body>
</html>
how can i validate my script for letters only on first 2 inputs 我如何才能仅在前2个输入上验证我的脚本是否包含字母
// Check s contains at least one letter and is only letters
function checkLettersOnly(s) {
return /^[a-z]+$/i.test(s);
}
if (!checkLettersOnly(document.myForm.Name.value)) {
// not letters only
}
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