This is a "popup demo" related to the section about opening windows in the document JavaScript and HTML: possibilities and caveats.

The link below should work in all browsing situations. In some situations, it will open a new window. And if JavaScript is enabled, that window will be 150 by 150 pixels (but resizable).

The link (which will here just give some authorship information).

Things to consider:

• Many users hate popup windows; they prefer selecting themselves when to open a new window.
• Unexperienced users will have difficulties in understanding what happens and in killing the windows.
• Setting any size in pixels is against good Web authoring principles and will in practice interfere with the fact that you cannot control text size and other properties.
• See what happens if you follow links in the popup window. On most browsers, there are no scrollbars (since you did not include scrollbars=1) but at least the popup window is resizable since you included resizable=1.
• There are no normal browser tools (back button etc.) in the window, on most browsers. This will probably cause confusion or at least inconvenience. If you start "fixing" that by including "back buttons" onto your pages, you're creating a partial solution to a problem that did not exist before you created it. Adding toolbar=1 would be a better fix (and the best fix is usually not to create popup windows at all).
• Thus, it is important to consider carefully the window attributes settings.