function yy_r39()
{
if ($this->yystack[$this->yyidx + -1]->minor != "endifchanged") {
$this->Error("Unexpected " . $this->yystack[$this->yyidx + -1]->minor . ", expecting endifchanged");
}
$this->_retvalue = array('operation' => 'ifchanged', 'body' => $this->yystack[$this->yyidx + -3]->minor, 'check' => $this->yystack[$this->yyidx + -5]->minor);
}