page on the Internet. In server evaluation, clicking an ImageMap sends the relative coordinates of the cursor within the image to the server, and a dedicated program on the server responds. In the client evaluation, clicking a defined hotspot of the ImageMap activates the URL, as if it were a normal text link. The URL appears below the mouse pointer when passing across the ImageMap.
页面的服务器计算机上进行处理的，称为服务器端图像映射。在服务器处理中，单击某个图像映射会将该图像中光标的相对坐标发送到服务器，并由服务器上的专用程序作出相应的反应。在客户端处理中，单击图像映射的已定义热点将启动 URL，这与单击了某个普通文字链接的效果类似。当鼠标指针移到图像映射上时，会在指针下方显示 URL。