there is now a blank space at the end of line 3:
"if (isset($_SESSION["WADbSearch1_resultsallenhanced"])) unset($_SESSION["WADbSearch1_resultsallenhanced"]);?> "
remove the blank space at the end of line 3:
"if (isset($_SESSION["WADbSearch1_resultsallenhanced"])) unset($_SESSION["WADbSearch1_resultsallenhanced"]);?>"