March 11, 1997

What does the “://” in a URL mean?

Question: What does the “://” in a URL mean? I understand the “http” and thedomain name, but there must be a reason for the “://”. Answer: Actually its not “://” as a single entity; rather, the colon is part of thehttp. The Web browser can handle different protocols (FTP, HTTP,

Can I do a “binary dump” using Perl?

Question: Can I do a “binary dump” using PERL? Meaning, can I “compile” a PERL script to binary form? If this is possible, I would greatly appreciate some “how to.” Answer: There is a “dump” command in Perl that puts the byte codes out to a file. These binary codes

How do I get the information back to me?

Question: I have completed my form but cannot figure out how to get theinformation sent back to me. In other words, when someone clicks SUBMITthey get an error message! I have no idea whether to use POST or what URLto use. Do I need a helper application? Answer: No. You

JPEG and GIF — which to use, and when?

Question: The graphics on my Web pages are all now in GIF format. Someone told me that I should convert all these GIFs over to JPEG format, because it is faster and better. Is this true? Answer: Not necessarily. It depends on the kind of image. The JPEG graphics format

Using interlaced GIFs as buttons in a form

Question: I want to create ‘back’ and ‘exit’ buttons that look the same as the’submit’ and ‘reset’ buttons that are in the &#060FORMS&#062 commands,and place them all together in a table at the bottom of my Formspages. Is it possible to create buttons that are interlaced GIFs anduse them in

How can I implement a counter on my page?

Question: How can I implement a counter on my page, like the oneyou use, to show how many visitors have been to my site? Answer: The most common way to do this is via a CGI script; however, if youdon’t have the time or inclination to write your own script,

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