What do i need to do:
-Email field needs to respect the EMAIL format (_@.__), if user doesn't respect it a message should pop up. - Here I couldn't finish, I don't know how.
-Phone field needs to be completed only with digits. - Doesn't work either...and also the vars for this function blocked the whole script ..I don't know what to do to finish the work.
What have i done: -make an input of Email and Phone, DONE
-at most 20 characters email and 15 characters phone, DONE
-at least 1 characters email and 2 character phone, DONE
here is the code:
<script>
function checkForm() {
var div5 = document.getElementById("email1");
var div6 = document.getElementById("email2");
var div7 = document.getElementById("email3");
var div8 = document.getElementById("phone1");
var div9 = document.getElementById("phone2");
var div10 = document.getElementById("phone3");
var email = document.getElementsByName("Email");
var phone = document.getElementsByName("Phone");
div5.style.display="none";
div6.style.display="none";
div7.style.display="none";
div8.style.display="none";
div9.style.display="none";
div10.style.display="none";
var query = document.getElementsByName('Phone').value;
var isNumeric=query.match(/^\d+$/);
if(isNumeric){
div10.style.display="inline";
}
if (email[0].value.length>20){
div5.style.display="inline";
} else if (email[0].value.length<1){
div6.style.display = "inline";
}
if (phone[0].value.length>15){
div8.style.display="inline";
} else if (phone[0].value.length<2) {
div9.style.display="inline";
}
function checkEmail() {
var email = document.getElementById('email');
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email.value)) {
alert('Please provide a valid email address');
email.focus;
return false;
}
}
}
</script>
</head>
<body>
<form name="mainform">
<div id="email">Email</div>
<input type="text" name="Email">
<div style="display:none" id="email1">error - max 20 characters.</div>
<div style="display:none" id="email2">error - at least 1 character.</div>
<div style="display:none" id="email3">error - respect the format __@__.__</div>
<div id="phone">Phone</div>
<input type="text" name="Phone">
<div style="display:none" id="phone1">error - max 15 characters.</div>
<div style="display:none" id="phone2">error - at least 2 character.</div>
<div style="display:none" id="phone3">error - only digits.</div>
<br>
<button type="button" onclick="checkForm(); checkEmail();"/>Check form</button>
