Index: trunk/admin/modules/addmodule.php
===================================================================
diff -u -r553 -r773
--- trunk/admin/modules/addmodule.php	(.../addmodule.php)	(revision 553)
+++ trunk/admin/modules/addmodule.php	(.../addmodule.php)	(revision 773)
@@ -156,6 +156,7 @@
     unset($data);
     $data = array();
     $status= admin_language("la_text_ready_to_install");
+    $pre_error = admin_language("la_text_prerequisit_not_passed");
     
     $mod_tmp_name_arr = explode('-', $mod);
     
@@ -167,7 +168,17 @@
     $mod_tmp_name = substr($mod_tmp_name, 0, strlen($mod_tmp_name) - 1);
     
     if (_ModuleLicensed($mod_tmp_name)) {
-    	$data["Url"] = "<A HREF=\"".$rootURL.$mod."/admin/install.php?env=".BuildEnv()."&redirect=1\">$status</A>";
+		if (file_exists($pathtoroot.strtolower($mod_tmp_name)."/admin/install/prerequisit.php")) {
+			include_once($pathtoroot.strtolower($mod_tmp_name)."/admin/install/prerequisit.php");
+		}
+		    	
+    	if ($result) {
+    		$data["Url"] = "<A HREF=\"".$rootURL.$mod."/admin/install.php?env=".BuildEnv()."&redirect=1\">$status</A>";
+    	}
+    	else {
+    		$show_errors = true;
+    		$data["Url"] = '<a href="javascript:javascript:CreatePopup(\'ModuleErrors\', \''.$rootURL.'admin/install/prerequisit_errors.php?module='.strtolower($mod_tmp_name).'\');"><font color="#FF0000">'.$pre_error.'</font></a>';
+    	}
     }
     else {
     	$data["Url"] = '<a href="'.$rootURL.'admin/modules/upgrade_lic.php?env='.BuildEnv().'"><font color="#FF0000">'.admin_language("la_module_not_licensed").'</font></a>';