function openPopup (imageURL, caption) { /* This routine creates a pop-up window, and ensures that it takes focus. It is intended to be called from an anchor tag. The new window will resize itself to the optimum size, so we make it as large as the largest required window to overcome bugs in various manifestations of various browsers. Author: John Gardner Written: 8th November 2003 Updated: 27th January 2004 Calling sequence: The first parameter is the URL of the image to be opened, and the second parameter is the caption for the image which is displayed in the window title and in the alt property of the image tag. Note that the calling sequence will simply open the image in the main window if JavaScript isn't enabled. */ // Constants - change these to suit your requirements Note that the defaultWidth // and defaultHeight variables should be set to more than your largest image to // overcome a bug in Mozilla (at least up to Firefox 0.9). var windowTop = 100; // Top position of popup var windowLeft = 100 // Left position of popup var defaultWidth = 1024; // Default width (for browsers that cannot resize) var defaultHeight = 768; // Default height (for browsers that cannot resize) var onLoseFocusExit = true; // Set if window to exit when it loses focus var undefined; // Set up the window open options var Options = "width=" + defaultWidth + ",height=" + defaultHeight + ",top=" + windowTop + ",left=" + windowLeft + ",resizable" // Now write the HTML markup to the new window, ensuring that we insert the // parameter URL of the image and the parameter description of the image in // the right place. var myScript = "\n" + "\n" + "\n" + "" + caption + "\\n" + "\n" + "\n" + "\n\n" + "\n" + "\""\n" + "\n" + "\n"; // Diagnostic - uncomment the next line if you wish to see the script generated. //alert (myScript); // Create the popup window var imageWindow = window.open ("","imageWin",Options); imageWindow.document.write (myScript); imageWindow.document.close (); if (window.focus) imageWindow.focus(); return false; }