// JS code for Contact Form - http://coursesweb.net/php-mysql/
var cform = document.getElementById('cform'); // get the form
var csubmit = document.getElementById('csubmit'); // get the submit button
// The function that create the anti-spamm code. From a number in milliseconds, taken from the current date
function set_codas() {
var data = new Date();
var mili_s = (data.getMilliseconds()>10) ? data.getMilliseconds() : 12;
var re = mili_s.toString()+Math.ceil(mili_s/11);
// Add the code in the hidden form field and in the visible text, and remove it from text field
document.getElementById('anti_spam').value = re;
document.getElementById('codas').innerHTML = re;
document.getElementById('anti_spam1').value = '';
return re;
}
// Function that take and check form data
function Validate() {
// takes data from each field
var file_php = cform.action;
file_php = file_php.split('/').pop(); // takes the name of the php file
var nume = cform.nume.value;
var email = cform.email.value;
var subject = cform.subject.value;
var message = cform.message.value;
var cod_as = cform.anti_spam.value;
var cod_as1 = cform.anti_spam1.value;
// Validate the fields data
var regx_mail = /^([a-zA-Z0-9]+[a-zA-Z0-9._%-]*@([a-zA-Z0-9-]+\.)+[a-zA-Z]{2,4})$/; // RegExp for e-mail address
if (nume.length<2 || nume.length>40) {
alert('Name must contain between 2 and 40 characters');
cform.nume.select();
}
else if (email.search(regx_mail)==-1){
alert('Add a valid e-mail address');
cform.email.select();
}
else if (subject.length<3 || subject.length>70) {
alert('Add a subject, between 3 and 70 characters');
cform.subject.select();
}
else if (message.length<5 || message.length>500) {
alert('Add a message, between 5 and 500 characters');
cform.message.select();
}
else if (cod_as!=cod_as1) {
alert('Incorrect verification code');
cform.anti_spam1.select();
}
else {
// add 'Sending...' notification in Send button, and disable it
csubmit.value = 'Sending...';
csubmit.setAttribute("disabled", "disabled");
// Define a string witth data to be sent to ajax function
var datele = 'nume='+nume+'&email='+email+'&subject='+subject+'&message='+message+'&anti_spam='+cod_as+'&anti_spam1='+cod_as1;
set_codas(); // Access the function to update the anti-spamm code
ajaxrequest(file_php, datele); // calls ajaxrequest()
}
return false;
}
// function that returns the XMLHttpRequest object according to browser
function get_XmlHttp() {
// the variable that will contain the instance of the XMLHttpRequest object (initially with null value)
var xmlHttp = null;
if(window.XMLHttpRequest) { // For Forefox, Opera, Safari, ...
xmlHttp = new XMLHttpRequest();
}
else if(window.ActiveXObject) { // For Internet Explorer
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
return xmlHttp;
}
// Ajax function, send data to a php file and display the server response
function ajaxrequest(php_file, datele) {
var cerere_http = get_XmlHttp(); // calls the function for the XMLHttpRequest object
cerere_http.open("POST", php_file, true); // Create the request
// adds a header to tell the PHP script to recognize the data as is sent via POST
cerere_http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
cerere_http.send(datele); // calls the send() method, and send data in parameter
// Check request status. If the response is received completely, will be returned
cerere_http.onreadystatechange = function() {
if (cerere_http.readyState == 4) {
// If the php script response contains "Error:", display it in the title of the form
// Otherwise, it displays instead form
if(cerere_http.responseText.indexOf("Error:")!=-1) {
// add 'Send' value in submit button button, and remove disabled
csubmit.value = 'Send';
csubmit.removeAttribute("disabled");
document.getElementById('fc_titlu').innerHTML = cerere_http.responseText;
}
else {
cform.innerHTML = cerere_http.responseText;
}
}
}
return false;
}
cform.onsubmit = function () {return Validate();}; // register "onsubmit" event at form
var cod_as = set_codas(); // Access the function that create the anti-spamm code
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