Quelltext der Datei: http://www.michaelster.ch/lernen/aufklapp.php

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<?phpfunction erzeugeSelect(    $sel_name,                                    $arr,                                        $sel_item,                                    $auto_submit = TRUE,                        $first         = 'W&auml;hlen Sie eine Kategorie &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;' ){    $menu    = '<select name="'.$sel_name.'" size="1"';    $menu   .= $auto_submit ? ' onchange="if(this.value==\'alle\' || this.value==\'-1\') { alert(\'Bitte Eintrag w&auml;hlen!\'); this.form.action=document.URL; }; this.form.submit();">'."\n" : '>'."\n";    $menu   .= $first == '' ? '' : '<option value="-1">'.$first.'</option>'."\n";        foreach ($arr as $schluessel => $wert)    {       $selected = $sel_item == $schluessel ? ' selected="selected"' : '';       $menu    .= '<option value="'.$schluessel.'"'. $selected.'>'.$wert.'</option>'."\n";    }    $menu .= '</select>'."\n";    $menu .= $auto_submit ? '<noscript><input type="submit" name="abschicken" value=" GO " /></noscript>' : '<input type="submit" name="abschicken" value=" GO " />'."\n";        return $menu;}/*****************************************************************************************************************/function erzeugeSelect__(    $sel_name,                                        $arr,                                            $sel_item,                                        $auto_submit = TRUE,                            $first         = 'Bitte Farbe w&auml;hlen &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;' ){    $menu    = '<form action="'.$_SERVER['PHP_SELF'].'" method="post">';    $menu   .= '<select name="'.$sel_name.'" size="1"';    $menu   .= $auto_submit                ? ' onchange="this.form.submit();" onfocus="this.style.backgroundColor=\'#f8f8ff\'">'."\n"                : '>'."\n";    $menu   .= $first == ''                ? ''                : '<option value="-1">'.$first.'</option>'."\n";        foreach ($arr as $schluessel => $wert)    {       $selected = $sel_item == $schluessel                       ? ' selected="selected"'                    : '';       $menu    .= '<option value="'.$schluessel.'"'. $selected.'>'.$schluessel.'</option>'."\n";    }    $menu .= '</select>'."\n";    $menu .= $auto_submit              ? '<noscript><input type="submit" name="abschicken" value=" GO " /></noscript>'              : '<input type="submit" name="abschicken" value=" GO " />';    $menu .= '</form>'."\n";        return $menu;}?>