有人可以幫助我與具有.projectCategories顯示「filterby」按鈕之前開放」點擊這裏是我迄今爲止HTML和Javascript - 開放之前,點擊打開DIV
<div class="filterby">
<a href="javascript:;" class="filterby_btn" onclick="if($(this).siblings('.projectCategories').css('display') == 'none') $(this).siblings('.projectCategories').slideToggle(500); else $(this).siblings('.projectCategories').slideToggle(500);"><?php echo get_option(DESIGNARE_SHORTNAME."_filter_by"); ?></a>
<div class="projectCategories"></div>
</div>