diff --git a/GameEngine/Alliance.php b/GameEngine/Alliance.php
index 550aa00b..f1ee6ff6 100755
--- a/GameEngine/Alliance.php
+++ b/GameEngine/Alliance.php
@@ -182,7 +182,7 @@ class Alliance {
 					$database->insertAlliNotice($invite['alliance'], '<a href="spieler.php?uid=' . $session->uid . '">' . addslashes($session->username) . '</a> has rejected the invitation.');
 				}
 			}
-			    header("Location: build.php?id=".$get['id']);
+			    header("Location: build.php?gid=18");
 			    exit;
 			}else{
 			    header("Location: banned.php");
@@ -241,7 +241,7 @@ class Alliance {
     			if($accept_error == 1){
     			    $form->addError("ally_accept", "The alliance can contain only ".$max." members at this moment.");
     			}else{
-    			    header("Location: build.php?id=" . $get['id']);
+    			    header("Location: build.php?gid=18");
     			    exit;
     			}
 			} else{
@@ -254,7 +254,7 @@ class Alliance {
 		Function to create an alliance
 		*****************************************/
 		private function createAlliance($post) {
-			global $form, $database, $session, $bid18, $village;
+			global $form, $database, $session, $bid18, $building;
 			if($session->access != BANNED){
 			if(!isset($post['ally1']) || $post['ally1'] == "") {
 				$form->addError("ally1", ATAG_EMPTY);
@@ -268,14 +268,20 @@ class Alliance {
 			if($database->aExist($post['ally2'], "name")) {
 				$form->addError("ally2", ANAME_EXIST);
 			}
+			if($session->alliance != 0){
+			    $form->addError("ally3", ALREADY_ALLY_MEMBER);
+			}
+			if($building->getTypeLevel(18) < 3){
+			    $form->addError("ally4", ALLY_TOO_LOW);
+			}
 			if($form->returnErrors() != 0) {
 				$_SESSION['errorarray'] = $form->getErrors();
 				$_SESSION['valuearray'] = $post;
-
-				header("Location: build.php?id=" . $post['id']);
+				if($building->getTypeLevel(18) > 0) header("Location: build.php?gid=18");
+				else header("Location: dorf2.php");
 				exit;
 			} else {
-				$max = $bid18[$village->resarray['f' . $post['id']]]['attri'];
+				$max = $bid18[$building->getTypeLevel(18)]['attri'];
 				$aid = $database->createAlliance($post['ally1'], $post['ally2'], $session->uid, $max);
 				$database->updateUserField($session->uid, "alliance", $aid, 1);
 				$database->procAllyPop($aid);
@@ -283,7 +289,7 @@ class Alliance {
 				$database->createAlliPermissions($session->uid, $aid, 'Alliance founder', '1', '1', '1', '1', '1', '1', '1', '1');
 				// log the notice
 				$database->insertAlliNotice($aid, 'The alliance has been founded by <a href="spieler.php?uid=' . $session->uid . '">' . addslashes($session->username) . '</a>.');
-				header("Location: build.php?id=" . $post['id']);
+				header("Location: build.php?gid=18");
 				exit;
 			}
 			}else{
diff --git a/GameEngine/Lang/en.php b/GameEngine/Lang/en.php
index 6fa17f27..8885b9b4 100755
--- a/GameEngine/Lang/en.php
+++ b/GameEngine/Lang/en.php
@@ -71,6 +71,8 @@ define("ATAG_EMPTY","Tag empty");
 define("ANAME_EMPTY","Name empty");
 define("ATAG_EXIST","Tag taken");
 define("ANAME_EXIST","Name taken");
+define("ALREADY_ALLY_MEMBER","You're already in an alliance");
+define("ALLY_TOO_LOW", "You must have a level 3 or greater alliance");
 define("NOT_OPENED_YET","Server not started yet.");
 define("REGISTER_CLOSED","The register is closed. You can't register to this server.");
 define("NAME_EMPTY","Please insert name");
diff --git a/Templates/Build/18.tpl b/Templates/Build/18.tpl
index b1536390..7f0cb6c0 100644
--- a/Templates/Build/18.tpl
+++ b/Templates/Build/18.tpl
@@ -22,7 +22,7 @@ echo "
 	<tr>
 		<th>".NAME."</th>
 		<td>".$alliance->allianceArray['name']."</td>
-
+        <span class=\"error\">".$form->getError("ally3")."</span>
 	</tr>
 	<tr>
 		<td class=\"empty\" colspan=\"2\"></td>
@@ -36,7 +36,6 @@ echo "
     ?>
 <table cellpadding="1" cellspacing="1" id="join">
 <form method="post" action="build.php">
-<input type="hidden" name="id" value="<?php echo $id ?>">
 <input type="hidden" name="a" value="2">
 
 <thead><tr>
@@ -56,6 +55,7 @@ echo "
         }
         ?>
 	</tr></tbody></table>
+	<p class="error"><?php echo $form->getError("ally4"); ?></p>
     <?php
         if($alliance->gotInvite) {
         echo "<p class=\"error2\" style=\"color: #DD0000\">".$form->getError("ally_accept")."</p>";
diff --git a/Templates/Build/18_create.tpl b/Templates/Build/18_create.tpl
index cb29195b..baabe3e7 100644
--- a/Templates/Build/18_create.tpl
+++ b/Templates/Build/18_create.tpl
@@ -1,7 +1,6 @@
 <?php if($session->access!=BANNED){ ?>
 <table cellpadding="1" cellspacing="1" id="found">
 	<form method="post" action="build.php">
-	<input type="hidden" name="id" value="<?php echo $id ?>">
 	<input type="hidden" name="ft" value="ali1">
 	<thead><tr>
 		<th colspan="2"><?php echo FOUND_ALLIANCE; ?></th>
@@ -11,7 +10,6 @@
 		<td class="tag">
 			<input class="text" name="ally1" value="<?php echo $form->getValue("ally1"); ?>" maxlength="15">
 			<span class="error"><?php echo $form->getError("ally1"); ?></span>
-
 		</td>
 	</tr>
 	<tr>
@@ -29,7 +27,6 @@
 	<?php }else{ ?>
 	<table cellpadding="1" cellspacing="1" id="found">
 	<form method="post" action="build.php">
-	<input type="hidden" name="id" value="<?php echo $id ?>">
 	<input type="hidden" name="ft" value="ali1">
 	<thead><tr>
 		<th colspan="2"><?php echo FOUND_ALLIANCE; ?></th>
@@ -39,7 +36,6 @@
 		<td class="tag">
 			<input class="text" name="ally1" disabled="disabled" value="<?php echo $form->getValue("ally1"); ?>" maxlength="8">
 			<span class="error"><?php echo $form->getError("ally1"); ?></span>
-
 		</td>
 	</tr>
 	<tr>