Lesson 4- Windows

When we talk about windows in this lesson we are speaking of the browser screens not the operating system. If you press control-N, you open a new window. The window methods allow the site creator to open and close a user's windows.

Window Methods

<script type="text/javascript">
mywindow = window.open()
mywindow.document.write("hi")
mywindow.document.close()
</script>

Line by Line

mywindow = window.open()

mywindow is just a name to use as a reference to the window just like when we used the variable textstring with the message box in lesson 2.

window.open() is the method to open a new window. The arguments of this method include URLs, the windows name, and a bunch of options for the windows (we'll go over this more later).

Remember to keep the arguments in order. You can only do: "mywindow=window.open(url, title, options)" and this is written as: "mywindow=window.open("http://google.com","blah","width=200, height=200")". If you don't have one of the arguments - say you don't care about the name, it would look like: "mywindow=window.open("http://google.com","","width=200, height=200")"

mywindow.document.write("hi")

window.write is a method that allows you to write in the window. It takes an argument which is whatever you want to write in there. We will say "hi".

mywindow.document.close()

This ends the description

There are a wide variety of options you can choose from

Congratulations, you have finished Lesson 4;

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