diff --git a/library/smarty/libs/sysplugins/smarty_internal_compile_if.php b/library/smarty/libs/sysplugins/smarty_internal_compile_if.php
new file mode 100644
--- /dev/null
+++ b/library/smarty/libs/sysplugins/smarty_internal_compile_if.php
@@ -0,0 +1,213 @@
+<?php
+/**
+ * Smarty Internal Plugin Compile If
+ * Compiles the {if} {else} {elseif} {/if} tags
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ * @author     Uwe Tews
+ */
+
+/**
+ * Smarty Internal Plugin Compile If Class
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_If extends Smarty_Internal_CompileBase {
+    /**
+     * Compiles code for the {if} tag
+     *
+     * @param array $args array with attributes from parser
+     * @param object $compiler compiler object
+     * @param array $parameter array with compilation parameter
+     *
+     * @return string compiled code
+     */
+    public function compile($args, $compiler, $parameter) {
+        // check and get attributes
+        $_attr = $this->getAttributes($compiler, $args);
+        $this->openTag($compiler, 'if', array(1, $compiler->nocache));
+        // must whole block be nocache ?
+        $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
+
+        if (!array_key_exists("if condition", $parameter)) {
+            $compiler->trigger_template_error("missing if condition", $compiler->lex->taglineno);
+        }
+
+        if (is_array($parameter['if condition'])) {
+            if ($compiler->nocache) {
+                $_nocache = ',true';
+                // create nocache var to make it know for further compiling
+                if (is_array($parameter['if condition']['var'])) {
+                    $var = trim($parameter['if condition']['var']['var'], "'");
+                } else {
+                    $var = trim($parameter['if condition']['var'], "'");
+                }
+                if (isset($compiler->template->tpl_vars[$var])) {
+                    $compiler->template->tpl_vars[$var]->nocache = true;
+                } else {
+                    $compiler->template->tpl_vars[$var] = new Smarty_Variable(null, true);
+                }
+            } else {
+                $_nocache = '';
+            }
+            if (is_array($parameter['if condition']['var'])) {
+                $_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
+                $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . ") {?>";
+            } else {
+                $_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
+                $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . ") {?>";
+            }
+
+            return $_output;
+        } else {
+            return "<?php if ({$parameter['if condition']}) {?>";
+        }
+    }
+}
+
+/**
+ * Smarty Internal Plugin Compile Else Class
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Else extends Smarty_Internal_CompileBase {
+    /**
+     * Compiles code for the {else} tag
+     *
+     * @param array $args array with attributes from parser
+     * @param object $compiler compiler object
+     * @param array $parameter array with compilation parameter
+     *
+     * @return string compiled code
+     */
+    public function compile($args, $compiler, $parameter) {
+        list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));
+        $this->openTag($compiler, 'else', array($nesting, $compiler->tag_nocache));
+
+        return "<?php } else { ?>";
+    }
+}
+
+/**
+ * Smarty Internal Plugin Compile ElseIf Class
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Elseif extends Smarty_Internal_CompileBase {
+    /**
+     * Compiles code for the {elseif} tag
+     *
+     * @param array $args array with attributes from parser
+     * @param object $compiler compiler object
+     * @param array $parameter array with compilation parameter
+     *
+     * @return string compiled code
+     */
+    public function compile($args, $compiler, $parameter) {
+        // check and get attributes
+        $_attr = $this->getAttributes($compiler, $args);
+
+        list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));
+
+        if (!array_key_exists("if condition", $parameter)) {
+            $compiler->trigger_template_error("missing elseif condition", $compiler->lex->taglineno);
+        }
+
+        if (is_array($parameter['if condition'])) {
+            $condition_by_assign = true;
+            if ($compiler->nocache) {
+                $_nocache = ',true';
+                // create nocache var to make it know for further compiling
+                if (is_array($parameter['if condition']['var'])) {
+                    $var = trim($parameter['if condition']['var']['var'], "'");
+                } else {
+                    $var = trim($parameter['if condition']['var'], "'");
+                }
+                if (isset($compiler->template->tpl_vars[$var])) {
+                    $compiler->template->tpl_vars[$var]->nocache = true;
+                } else {
+                    $compiler->template->tpl_vars[$var] = new Smarty_Variable(null, true);
+                }
+            } else {
+                $_nocache = '';
+            }
+        } else {
+            $condition_by_assign = false;
+        }
+
+        if (empty($compiler->prefix_code)) {
+            if ($condition_by_assign) {
+                $this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
+                if (is_array($parameter['if condition']['var'])) {
+                    $_output = "<?php } else { if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
+                    $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . ") {?>";
+                } else {
+                    $_output = "<?php  } else { if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
+                    $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . ") {?>";
+                }
+
+                return $_output;
+            } else {
+                $this->openTag($compiler, 'elseif', array($nesting, $compiler->tag_nocache));
+
+                return "<?php } elseif ({$parameter['if condition']}) {?>";
+            }
+        } else {
+            $tmp = '';
+            foreach ($compiler->prefix_code as $code) {
+                $tmp = $compiler->appendCode($tmp, $code);
+            }
+            $compiler->prefix_code = array();
+            $tmp = $compiler->appendCode("<?php } else {?>", $tmp);
+            $this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
+            if ($condition_by_assign) {
+                if (is_array($parameter['if condition']['var'])) {
+                    $_output = $compiler->appendCode($tmp, "<?php  if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n");
+                    $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . ") {?>";
+                } else {
+                    $_output = $compiler->appendCode($tmp, "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});");
+                    $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . ") {?>";
+                }
+
+                return $_output;
+            } else {
+                return $compiler->appendCode($tmp, "<?php if ({$parameter['if condition']}) {?>");
+            }
+        }
+    }
+}
+
+/**
+ * Smarty Internal Plugin Compile Ifclose Class
+ *
+ * @package    Smarty
+ * @subpackage Compiler
+ */
+class Smarty_Internal_Compile_Ifclose extends Smarty_Internal_CompileBase {
+    /**
+     * Compiles code for the {/if} tag
+     *
+     * @param array $args array with attributes from parser
+     * @param object $compiler compiler object
+     * @param array $parameter array with compilation parameter
+     *
+     * @return string compiled code
+     */
+    public function compile($args, $compiler, $parameter) {
+        // must endblock be nocache?
+        if ($compiler->nocache) {
+            $compiler->tag_nocache = true;
+        }
+        list($nesting, $compiler->nocache) = $this->closeTag($compiler, array('if', 'else', 'elseif'));
+        $tmp = '';
+        for ($i = 0; $i < $nesting; $i++) {
+            $tmp .= '}';
+        }
+
+        return "<?php {$tmp}?>";
+    }
+}