update if statement security feature

libs/Smarty_Compiler.class.php

@@ -485,6 +485,12 @@ class Smarty_Compiler extends Smarty {
         $is_arg_stack = array();
 
         for ($i = 0; $i < count($tokens); $i++) {
+			
+			if($this->security && $tokens[$i+1] == '(' && !in_array($tokens[$i],$this->security_settings["ALLOW_IF_FUNCS"])) {
+                        $this->_syntax_error("(secure mode) '".$tokens[$i]."' not allowed in if statement");				
+			}
+			
+			
             $token = &$tokens[$i];
             switch ($token) {
                 case 'eq':