frames.js

这是《JavaScript学习源代码》一书的源代码

// NOTE: to try this example opern the file named "frames.html" in a web browser

function frame_info()
{
// find the total number of frames
var framenums = "No. frames :" + parent.window.frames.length;

// retrieve the name of each frame
var framenames= "\nFrame 1 : " + parent.window.frames[0].name;
framenames+= "\nFrame 2 : " + parent.window.frames[1].name;
framenames+= "\nFrame 3 : " + parent.window.frames[2].name;
alert( framenums + framenames );
}