Index: core/kernel/nparser/nparser.php
===================================================================
--- core/kernel/nparser/nparser.php
+++ core/kernel/nparser/nparser.php
@@ -1038,15 +1038,17 @@
 			* skip_prefix_id:<prefix1>[,<prefix2>,<prefix3>] - exclude id-based serial for given prefix(-es)
 			* var:<aaa>[,<bbb>,<ccc>] - include request variable value(-s)
 			* skip_var:<varA>[,<varB>,<varC>] - exclude request variable value(-s)
+			* param:<aaa>[,<bbb>,<ccc>] - include template parameter value(-s)
+			* skip_param:<paramA>[,<paramB>,<paramC>] - exclude template parameter value(-s)
 			* (%variable_name) - include request variable value (only value without variable name ifself, like in "var:variable_name")
 			* [%SerialName%] - use to retrieve serial value in free form
 		*/
 
 		// 3. get variable names, prefixes and prefix ids, that should be skipped
-		$skip_prefixes = $skip_prefix_ids = $skip_variables = Array ();
+		$skip_prefixes = $skip_prefix_ids = $skip_variables = $skip_params = Array ();
 
 		foreach ($keys as $index => $key) {
-			if (preg_match('/^(skip_var|skip_prefix|skip_prefix_id):(.*?)$/i', $key, $regs)) {
+			if (preg_match('/^(skip_var|skip_param|skip_prefix|skip_prefix_id):(.*?)$/i', $key, $regs)) {
 				unset($keys[$index]);
 				$tmp_parts = explode(',', $regs[2]);
 
@@ -1055,6 +1057,10 @@
 						$skip_variables = array_merge($skip_variables, $tmp_parts);
 						break;
 
+					case 'skip_param':
+						$skip_params = array_merge($skip_params, $tmp_parts);
+						break;
+
 					case 'skip_prefix':
 						$skip_prefixes = array_merge($skip_prefixes, $tmp_parts);
 						break;
@@ -1068,23 +1074,37 @@
 
 		$skip_prefixes = array_unique($skip_prefixes);
 		$skip_variables = array_unique($skip_variables);
+		$skip_params = array_unique($skip_params);
 		$skip_prefix_ids = array_unique($skip_prefix_ids);
 
 		// 4. process keys
 		foreach ($keys as $key) {
-			if (preg_match('/^(var|prefix|prefix_id):(.*?)$/i', $key, $regs)) {
+			if (preg_match('/^(var|param|prefix|prefix_id):(.*?)$/i', $key, $regs)) {
 				$tmp_parts = explode(',', $regs[2]);
 
 				switch ($regs[1]) {
 					case 'var':
-						// format: "var:country_id" will become "country_id=<country_id>"
+						// format: "var:country_id" will become "r:country_id=<country_id>"
 						$tmp_parts = array_diff($tmp_parts, $skip_variables);
 
 						foreach ($tmp_parts as $variable_name) {
 							$variable_value = $this->Application->GetVar($variable_name);
 
 							if ($variable_value !== false) {
-								$parts[] = $variable_name . '=' . $variable_value;
+								$parts[] = 'r:' . $variable_name . '=' . $variable_value;
+							}
+						}
+						break;
+
+					case 'param':
+						// format: "param:country_id" will become "p:country_id=<country_id>"
+						$tmp_parts = array_diff($tmp_parts, $skip_params);
+
+						foreach ($tmp_parts as $param_name) {
+							$param_value = $this->GetParam($param_name);
+
+							if ($param_value !== false) {
+								$parts[] = 'p:' . $param_name . '=' . $param_value;
 							}
 						}
 						break;
@@ -1128,11 +1148,11 @@
 			}
 			elseif ($key == 'currency') {
 				// based on current currency
-				$parts[] = 'curr_iso=' . $this->Application->RecallVar('curr_iso');
+				$parts[] = 's:curr_iso=' . $this->Application->RecallVar('curr_iso');
 			}
 			elseif ($key == 'groups') {
 				// based on logged-in user groups
-				$parts[] = 'groups=' . $this->Application->RecallVar('UserGroups');
+				$parts[] = 's:groups=' . $this->Application->RecallVar('UserGroups');
 			}
 			elseif ($key == 'guest_only') {
 				// we know this key, but process it at method beginning