Virtual Hospital Help Pages

Copyright © 1995 The University of Iowa

Navigating a Web Page

The Virtual Hospital, like most World Wide Web servers, is organized around the concept of a "web page," an informational display that may contain both text and images, as well as hypertext links to other "pages." The term "page" is a little misleading, as the material it contains may take several screens to display. If you are using a graphical web browser like Netscape Navigator or NCSA Mosaic, there are some navigational aids that help you maneuver through a web page. These include the scroll bar, icons or image maps that appear on the page, the location bar, and the back, forward and home buttons at the top of your screen.

Hypertext links: A hypertext link is a "hot" area within a web page that links it to another web page. Links can take several forms: colorized and underlined text (notice the links on this page?), buttons, maps or images. When you click on a hypertext link, the browser takes you to a new page by interpreting the address contained within the link. (Some browsers show the address of the web page at the bottom of your screen). This can be another page on the same server, or on another web server halfway around the world. When the link consists of colorized text, the text turns color (blue to red on many browsers) to indicate it has been activated. This is useful for keeping track of which links you've followed.

Scroll bar: Scroll through the web page by clicking on the up and down arrows along the right hand side of the screen. (If your keyboard has page up and page down keys, they can be used to move a screen at a time in the desired direction).

Icons: In the Virtual Hospital, an icon is a small "thumbnail" image that may represent a larger image, a video clip, a sound file, or a link to another file. Clicking on an icon either activates a link, expands the image to its full size, or launches the helper application that is needed to run the video or sound clip. The progress bar at the bottom of the screen indicates that a video or sound file is loading and shows how the load is progressing. For large files (video files are the largest), be prepared to wait a short while. Click once on the Stop button at the top of the screen to halt the loading of an image.

Not all small images in the Virtual Hospital are icons. Icons are identified by their colored borders. These borders change color after the image has been activated, letting you know that you've viewed the full image.

Image map: An image map is a "hot" image or collection of buttons that loads a new web page depending upon where you click. The map labels indicate where the link takes you.

Location bar: Centered over the viewing area, the location bar shows the full World Wide Web "address" of the Virtual Hospital server, as well as the file name of the web page you are viewing. You'll note as you move through the web pages that these file names change while the first portion of the address remains constant. If you bookmark a particular web page, the browser records the full address, including file name, of that page.

Back button: Each time you move from one web page to another by following links, your browser records those steps. By clicking on the back button, you retrace those steps one link at a time.

Forward button: If, having retraced your steps through the Virtual Hospital, you wish to revisit the pages you viewed earlier, the forward button takes you back along that same path, one step at a time. Note that the links that the back and forward buttons maintain are only good in the current browsing session. Unlike a bookmark, they are lost when you quit the session.

Home button: Clicking the home button takes you to the "home page" of the web server your browser is set to. If your browser has the Virtual Hospital designated as its home page, clicking this button reloads the first Virtual Hospital screen.


Helper Applications for Macintosh & Windows

If you access the Virtual Hospital with a graphical web browser like Netscape Navigator or NCSA Mosaic, you will need helper applications to load some of our files. The following is a partial listing of helper applications culled from the Netscape and NCSA Mosaic home pages. Descriptions of these applications and how they work appear at these sites. Please note that all of these applications are either freeware or shareware, and that their listing here does not constitute any guarantee that they will work with your system. We attempt to keep this list up-to-date, but be aware that it may contain outdated links.

Helper Applications for Macintosh

Clicking on the highlighted FTP address initiates a download of the software.

JPEGView 3.3 (for viewing JPEG images):

ftp://ftp.ncsa.uiuc.edu/Mosaic/Mac/Helpers/jpeg-view-331.hqx

Sound Machine 2.1 (sound player):

ftp://ftp.ncsa.uiuc.edu/Mosaic/Mac/Helpers/sound-machine-21.hqx

Sparkle 2.31 (movie player):

ftp://ftp.ncsa.uiuc.edu/Mosaic/Mac/Helpers/sparkle-231.hqx

ftp://ftp.utexas.edu/pub/mac/graphics/sparkle-231-fat.hqx (PowerMac version)

Fast Player 1.1.0 (movie player):

ftp://ftp.ncsa.uiuc.edu/Mosaic/Mac/Helpers/fast-player-110.hqx

NCSA Telnet (to search Hardin Library's OASIS & Healthnet databases):

ftp://ftp.ncsa.uiuc.edu/Telnet/Mac/Telnet2.6/

ftp://ftp.utexas.edu/pub/mac/tcpip/ncsa-telnet-26.hqx


Helper Applications for Windows

Clicking on the highlighted FTP address initiates a download of the software.

NCSA's Windows page provides guidance for installing helper applications on Windows machines.

Lview Pro (for viewing JPEG images):

ftp://ftp.ncsa.uiuc.edu/Mosaic/Windows/viewers/lviewp1c.zip

Wham 1.3.3 & Plany 0.9 (sound players):

ftp://ftp.ncsa.uiuc.edu/Mosaic/Windows/viewers/wplny12a.zip

ftp://gatekeeper.dec.com/pub/micro/msdos/win3/sounds/wham133.zip

Mpegplay (plays MPEG movies):

ftp://ftp.ncsa.uiuc.edu/Mosaic/Windows/viewers/mpegw32h.zip

QuickTime extensions for Windows (plays QuickTime movies with Windows Media Player):

http://www.ncsa.uiuc.edu/SDG/Software/WinMosaic/Viewers/qt.htm

NCSA Telnet (to search Hardin Library's OASIS & Healthnet databases):

ftp://gatekeeper.dec.com/pub/micro/msdos/win3/winsock/wintelb3.zip

ftp://gatekeeper.dec.com/pub/micro/msdos/win3/winsock/trmptel.zip


Search the Virtual Hospital. View an outline of the contents. Please read the attached copyright and disclaimer notice. We welcome your comments and suggestions.
librarian@vh.radiology.uiowa.edu

Electric Differential Multimedia Lab

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File last updated: October 05, 1995