如何把背景颜色的参数传出去呢？

Question

<div class="p-right">      <div class="color330" id="a1" style="background:#FFDFFF"></div>                    <div class="color330" id="a2" style="background:#C3FEC0"></div>                    <div class="color330" id="a3" style="background:#FFE3b8"></div>                    <div class="color330" id="a4" style="background:#CEECFF"></div>                   <div class="color330" id="a5" style="background:#E8DEFF"></div>                   <input type="hidden" value="" name="idvalue" id="idvalue">     </div>怎么才能用input把背景颜色的id a1 a2 传出去呢？