diff --git a/htdocs/langs/en_US/eventorganization.lang b/htdocs/langs/en_US/eventorganization.lang
index 8f36876fddc..97293f3cbb0 100644
--- a/htdocs/langs/en_US/eventorganization.lang
+++ b/htdocs/langs/en_US/eventorganization.lang
@@ -98,10 +98,8 @@ EvntOrgCancelled = Cancelled
 #
 SuggestForm = Suggestion page
 RegisterPage = Page for conferences or booth
-EvntOrgRegistrationWelcomeMessage = Welcome on the conference or booth suggestion page.
 EvntOrgRegistrationConfHelpMessage = Here, you can suggest a new conference for the project
 EvntOrgRegistrationBoothHelpMessage = Here, you can suggest a new booth for the project
-EvntOrgVoteHelpMessage = Here, you can view and vote for the suggested events for the project
 ListOfSuggestedConferences = List of suggested conferences
 ListOfSuggestedBooths = List of suggested booths
 SuggestConference = Suggest a new conference
@@ -114,6 +112,16 @@ EvntOrgDuration = This conference starts on %s and ends on %s.
 ConferenceAttendeeFee = Conference attendee fee for the event : '%s' occurring from %s to %s.
 BoothLocationFee = Booth location for the event : '%s' occurring from %s to %s
 EventType = Event type
+
+#
+# Vote page
+#
+EvntOrgRegistrationWelcomeMessage = Welcome on the conference or booth suggestion page.
+EvntOrgVoteHelpMessage = Here, you can view and vote for the suggested events for the project
+VoteOk = Your vote has been accepted.
+AlreadyVoted = You have already voted for this event.
+VoteError = An error has occurred during the vote, please try again.
+
 #
 # SubscriptionOk page
 #
diff --git a/htdocs/public/payment/paymentok.php b/htdocs/public/payment/paymentok.php
index bf140bdd600..5cbd3da966b 100644
--- a/htdocs/public/payment/paymentok.php
+++ b/htdocs/public/payment/paymentok.php
@@ -1068,7 +1068,6 @@ if ($ispaymentok) {
 			$ispostactionok = -1;
 		}
 	} elseif (array_key_exists('BOO', $tmptag) && $tmptag['BOO'] > 0) {
-		// @todo BOOTH CASE (to copy and adapt from above)
 		// Record payment
 		include_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
 		$object = new Facture($db);
diff --git a/htdocs/public/project/viewandvote.php b/htdocs/public/project/viewandvote.php
index 7b6f8776d3a..355156d73cb 100644
--- a/htdocs/public/project/viewandvote.php
+++ b/htdocs/public/project/viewandvote.php
@@ -70,7 +70,7 @@ $hookmanager = new HookManager($db);
 $hookmanager->initHooks(array('newpayment'));
 
 // For encryption
-global $dolibarr_main_instance_unique_id;
+global $dolibarr_main_instance_unique_id, $dolibarr_main_url_root;
 
 // Load translation files
 $langs->loadLangs(array("main", "other", "dict", "bills", "companies", "errors", "paybox", "paypal", "stripe")); // File with generic data
@@ -88,6 +88,14 @@ if ($securekeytocompare != $securekeyreceived) {
 	exit;
 }
 
+if (GETPOST("votestatus")=="ok") {
+	setEventMessage($langs->trans("VoteOk"), 'mesgs');
+} else if (GETPOST("votestatus")=="ko") {
+	setEventMessage($langs->trans("AlreadyVoted"), 'warnings');
+} else if (GETPOST("votestatus")=="err") {
+	setEventMessage($langs->trans("VoteError"), 'warnings');
+}
+
 // Define $urlwithroot
 //$urlwithouturlroot=preg_replace('/'.preg_quote(DOL_URL_ROOT,'/').'$/i','',trim($dolibarr_main_url_root));
 //$urlwithroot=$urlwithouturlroot.DOL_URL_ROOT;		// This is to use external domain name found into config file
@@ -120,7 +128,6 @@ $sql = "SELECT a.id, a.fk_action, a.datep, a.datep2, a.label, a.fk_soc, a.note,
 $sqlforconf = $sql." AND ca.module='conference@eventorganization'";
 $sqlforbooth = $sql." AND ca.module='booth@eventorganization'";
 
-
 // For conferences
 $result = $db->query($sqlforconf);
 $i = 0;
@@ -133,7 +140,7 @@ while ($i < $db->num_rows($result)) {
 		$thirdpartyname = '';
 	}
 	$listOfConferences .= '<tr><td>'.$obj->label.'</td><td>'.$obj->libelle.'</td><td>'.$obj->datep.'</td><td>'.$obj->datep2.'</td><td>'.$thirdpartyname.'</td><td>'.$obj->note.'</td>';
-	$listOfConferences .= '<td><input type="submit" value="'.$langs->trans("Vote").'" name="'.$obj->id.'" class="button"></td></tr>';
+	$listOfConferences .= '<td><button type="submit" name="vote" value="'.$obj->id.'" class="button">'.$langs->trans("Vote").'</button></td></tr>';
 	$i++;
 }
 
@@ -149,10 +156,56 @@ while ($i < $db->num_rows($result)) {
 		$thirdpartyname = '';
 	}
 	$listOfBooths .= '<tr><td>'.$obj->label.'</td><td>'.$obj->libelle.'</td><td>'.$obj->datep.'</td><td>'.$obj->datep2.'</td><td>'.$thirdpartyname.'</td><td>'.$obj->note.'</td>';
-	$listOfBooths .= '<td><input type="submit" value="'.$langs->trans("Vote").'" name="'.$obj->id.'" class="button"></td></tr>';
+	$listOfBooths .= '<td><button type="submit" name="vote" value="'.$obj->id.'" class="button">'.$langs->trans("Vote").'</button></td></tr>';
 	$i++;
 }
 
+// Get vote result
+$idvote = GETPOST("vote");
+$hashedvote = dol_hash($conf->global->EVENTORGANIZATION_SECUREKEY.'vote'.$idvote);
+
+if (strlen($idvote)) {
+	if ($_COOKIE['VOTE_SUGGESTED_EVENTS_'.$hashedvote]==1) {
+		// Has already voted
+		$votestatus = 'ko';
+	} else {
+		// Has not already voted
+		$conforbooth = new ActionComm($db);
+		$resultconforbooth = $conforbooth->fetch($idvote);
+		if ($resultconforbooth<=0) {
+			$error++;
+			$errmsg .= $conforbooth->error;
+		} else {
+			// Cookie expiration date : start of event, or 30 days if not specified
+			$startdate = $conforbooth->datep;
+			if (strlen($startdate)) {
+				$timeleftbeforestartofevent = $startdate;
+			} else {
+				// Cookie duration by default
+				$timeleftbeforestartofevent = time()+86400*30;
+			}
+
+			// Process to vote
+			$res = setcookie('VOTE_SUGGESTED_EVENTS_'.$hashedvote, 1, 0);
+			if ($res) {
+				$conforbooth->num_vote++;
+				$resupdate = $conforbooth->update($user);
+				if ($resupdate) {
+					$votestatus = 'ok';
+				} else {
+					//Error during update
+					$votestatus = 'err';
+					$res = setcookie('VOTE_SUGGESTED_EVENTS_'.$hashedvote, 0, 0);
+				}
+			} else {
+				$votestatus = 'err';
+			}
+		}
+	}
+	header("Refresh:0;url=".dol_buildpath('/public/project/viewandvote.php?votestatus='.$votestatus.'&id='.$id.'&securekey=', 1).$securekeyreceived);
+}
+
+
 /*
  * View
  */