我有这个:
<div class="map_container">
<%= image_tag("maps/mainmap.png", :width => "450", :height => "450", :usemap => "#mainmap", :alt => "") %>
<map name="mainmap">
<area shape="poly"
coords="158,43,152,49,164,86,165,112,153,153,139,169,145,236,201,241,202,251,166,253,142,257,132,294,102,269,85,240,68,227,53,213,28,202,27" alt=""
onmouseover="document.body.style.cursor='pointer'"
onmouseout="document.body.style.cursor='default'" >
</map>
</div>
当我将鼠标移动到区域形状上时会改变光标,但是如何更改正在显示的图像(mainmap.png)呢?
修改
我尝试了以下内容:
onmouseover="this.src='image2.png';"
不起作用,但我只能使用rails image_tag帮助程序显示原始图像,行:<img src="maps/mainmap.png" width="450" height="450" usemap="#mainmap" alt="">
也不显示mainmap.png图像。这是我的应用程序找到图像目录的问题吗?
非常感谢任何帮助,非常感谢。
答案 0 :(得分:0)
我假设你没有使用任何js框架,所以试试这个:
function changeImage(area) {
var parent= area.parentNode, // Get the parent of area
name = parent.getAttribute('name'), // Get the name attribute of the area which is same as the id of the image used
img = document.getElementById(name); // Get the image obj
img.src = "maps/newmap.png"; // Set the new image source
}