Untitled

<html>

<head> <title> Customer Login Form </title></head>

<script>

function myFunction()
{
	var x =document.forms["myForm"]["customerName"].value;
	var y = document.forms["myForm"]["customerPassword"].value;


    //Name

    if(!(x.search(/[^a-zA-Z0-9]+/) === -1))
    {
    	alert("Invalid Customer Name");
    	return false;
    }

	if(x==null || x.length > 15 || x==" ")
	{
		alert("Invalid User Name");
		return false;
	}
	if(y.length < 6 )
	{
		alert("Invalid Password Length");
		return false;
	}


     //E-Mail
    var e = document.forms["myForm"]["myEmail"].value;
    var t = new RegExp("^[a-zA-Z0-9_+&*-]+(?:\\." + "[a-zA-Z0-9_+&*-]+)*@" + "(?:[a-zA-Z0-9-]+\\.)+[a-z" + "A-Z]{2,7}$");
	if (t.test(e))
	{
   	 return true;
	}
	else
	{
    alert("Invalid Email Address");
	}


    //Pincode
	var p = document.forms["myForm"]["Pincode"].value;
	var q = p.toString();
	if(q.length != 6)
	{
		prompt("Invalid Pincode");
		return false;
    }

 }


</script>

<body>
<form name="myForm" action="first.htm" method="GET" onSubmit="return myFunction();">
<br>
Customer Name: <input type="text" name="customerName" placeholder="User Name ID"/>
<br><br>

Email: <input type="text" name="myEmail" placeholder="Email"/>
<br><br>

Pincode: <input type="number" name="Pincode">
<br><br>
Password: &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;<input type="password" name="customerPassword" placeholder="Password"/>
<br><br>
<input type="submit" value="submit" />


</form>
</body>
</html>