TRIK MEMBUAT KODE CAPTCHA DENGAN HTML|CSS|JAVASCRIPT

[-IMPORT CSS-]

[-KODE PEMANGGILCSS]

<div class="capbox-inner">
Security Captcha :<br>
<input type="hidden" id="txtCaptcha">
<input type="text" name="CaptchaInput" id="CaptchaInput" size="15">

[-GANTI URL POST-]

// Captcha Script

function checkform(theform){
var why = "";
if(theform.CaptchaInput.value !== ""){
why += "- Please Enter CAPTCHA Code.\n";
}

[EDIT TEXT ALERT]

if(theform.CaptchaInput.value != ""){
if(ValidCaptcha(theform.CaptchaInput.value) == false){
why += "- The CAPTCHA Code Does Not Match.\n";
}
}
if(why != ""){
alert(why);
return false;
}
}

[-JANGAN MENGHAPUS SALAH SATU KODE-]

var a = Math.ceil(Math.random() * 9)+ '';
var b = Math.ceil(Math.random() * 9)+ '';
var c = Math.ceil(Math.random() * 9)+ '';
var d = Math.ceil(Math.random() * 9)+ '';
var e = Math.ceil(Math.random() * 9)+ '';

var code = a + b + c + d + e;
document.getElementById("txtCaptcha").value = code;
document.getElementById("CaptchaDiv").innerHTML = code;

// Validate input against the generated number
function ValidCaptcha(){
var str1 = removeSpaces(document.getElementById('txtCaptcha').value);
var str2 = removeSpaces(document.getElementById('CaptchaInput').value);
if (str1 == str2){
return true;
}else{
return false;
}
}
// Remove the spaces from the entered and generated code

function removeSpaces(string){
return string.split(' ').join('');
}
</script>
</form>
[-END CAPTCHA-]

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