如何使窗體action =「connect.php」在我的函數內停止?我做到了這一點,如果輸入錯誤,然後返回一個錯誤;但是,如果沒有錯誤返回,那麼action =「connect.php」發生,但我不知道如何使action =如果出現錯誤,則會發生「connect.php」。我如何使它停止,並且不去connect.php?通過使用Javascript發生的停止窗體操作
HTML:
<form action="connect.php" method="get" name="registerForm">
<h3>Not a member yet? Sign Up!</h3>
<p>Username:</p><input type="text" name="name" id="registerinput_username">
<div id="usernamereq2"><p>Field is required.</p><img src="ximg.png" alt="x"></div>
<p>Email:</p><input type="text" name="email" id="registerinput_email">
<div id="emailreq"><p>Field is required.</p><img src="ximg.png" alt="x"></div>
<p>A password will be e-mailed to you.</p>
<input type="submit" name="submit" value="Register" id="registersubmit">
</form>
的JavaScript和jQuery:
$("#registersubmit").click(function(){
if($("#registerinput_username").val() == "" || $("#registerinput_email").val() == "")
{
if($("#registerinput_username").val() == "")
{
$("#usernamereq2").css({
opacity:'1'
});
}
if($("#registerinput_email").val() == "")
{
$("#emailreq").css({
opacity:'1'
});
}
}
if($("#registerinput_username").val() != "")
{
$("#usernamereq2").css({
opacity:'0'
});
}
if($("#registerinput_email").val() != "")
{
$("#emailreq").css({
opacity:'0'
});
checkContinue();
}
if($("#registerinput_email").val() != "" && $("#registerinput_username").val() != "")
{
validateFormRegister();
}
});
function validateFormRegister()
{
var email=document.forms["registerForm"]["email"].value;
var atpos=email.indexOf("@");
var dotpos=email.lastIndexOf(".");
var name=document.forms["registerForm"]["name"].value;
var x=name.length;
if(atpos<1 || dotpos<atpos+2 || dotpos+2>=email.length)
{
alert("Email is invalid.");
}
if(x<5)
{
alert("Username is too short! Must be at least 5 characters.");
}
}