显示与隐藏的问题

Question

不可以，你没有指定id=<%=B_id%>,可以用this关键字指向当前对象。onMouseOver="this.style.visibility='hidden';"

Answer 1

<img src="images/Builds/<%=B_img%>" border="0" onMouseOver="this.style.visibility='hidden';" onMouseOut="this.style.visibility = 'visible';">

Answer 2

<div id="<%=B_name%>" style="position:absolute; left:98px; top:<%=i%>px; width:425px; height:14px; z-index:1; background-color: #FFCC00; layer-background-color: #FFCC00; border: 1px none #000000; visibility: visible;">  <%
  hidden=B_name&".style.visibility='hidden'"
  visible=B_name&".style.visibility='visible'"
  %><a href="#"><img src="images/Builds/<%=B_img%>" border="0"
onMouseOver="<%=hidden%>;" onMouseOut="<%=visible%>;"></a>这样呢？

Answer 3

this 是本身的这张图片，我要显示的是另外的层

Answer 4

<a href="#"><img src="images/Builds/<%=B_img%>" border="0"
onMouseOver="city.style.visibility='hidden'" onMouseOut="city.style.visibility='visible'"></a>这样隐藏的不是层啊，是我定义的另外一个输入框。怪哉！