, and columns , and the table(s) have both beginning/ending table tags

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Troubleshooting – HTML, Graphics, CGI, JAVA

Murphy’s Law  does not discriminate when it comes to writing pages for your website or blog. Regardless if it’s HTML, graphics, CGI, or JAVA , you’re bound to run into some ‘glitches’ along the way. While understanding and knowing how to use the program you’re working with is a big plus – you can track down and fix some problems by having just a basic understanding of how a program works and knowing what to look for. The following are some of the more common errors you might encounter when writing a document or using images . . . along with a few simple fixes to consider.

HTML

If the document displays everything as bold, italics, underlined, centered, etc. – check for beginning and ending tags for the code, i.e., bolding, underlining, centering, font characteristics, etc. You will find most of the time this will be a very quick fix to most problems. (I know . . . this one was a ‘no brainer’)

Tables  give you a lot of control on how your information is displayed, however they can also be a real challenge. If you find your tables are out of alignment, columns are offset or the background images or colors you input do not display, try the following:

  • Make sure all tables (including nested tables) have open/close tags for rows
,
,
.
  • Make use of  ‘colspan’ tag when you want a single column in a table to span multiple columns, i.e., where ‘N’ is the number of columns you want to span. 
  • If your colored background doesn’t display or is not the right color – check for the # before the hexadecimal color – leaving this symbol out will cause a problem. Also check for the double quotes ( ) before and after the hexadecimal color – this will also cause an off color to display.
  • If using a background image for the page or in a table, make sure the image has been uploaded and the path in the document BODY tag or the HTML ‘background’ tag for the table, row or column is correct.
  • Links help visitors navigate your website quickly, however, getting a 404 Error is definitely not cool. Always check links to make sure they are working once a new page has been uploaded. If they don’t and you get a 404 error, check for the following:

    Graphics/Images

    Images can be a real plus but if they don’t appear as planned – seeing an empty white box is not good, making the page look unprofessional. Some common fixes for missing images are:

    If your picture  is in a folder named ‘images’, the following would be true:

    Correct:

    Incorrect:

    CGI/JAVA

    CGI is a great way to get information from your visitors but it can be very frustrating trying to track down why a form may not be working correctly.  These are some of the most common culprits:

    JAVA can add a new twist to a page and give your visitor many options, i.e, share, bookmark, email, and best part,  you don’t need to know how to write JAVA. However, tracing problems can be difficult if you don’t have any basic knowledge of how JAVA is written so as to separate the ‘instructions’ from the ‘meat’ of the script. The JAVAScriptSource is a good start for learning the basics before you try your hand at using JAVA. And, if you run into any snags – try these solutions before you decide to ‘not use’ the script at all.

    HEAD Section Example:

    These are some of the more common things to look for when troubleshooting a page. Hopefully you’ll find some of them useful and maybe save you a few minutes of time.


    March 16th, 2010 | Tags: , , , | Category: Graphics, HTML, Scripts - CGI, JavaScripts & PHP

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