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Of CGI And Java Scripts (DOC)

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					Title:
Of CGI And Java Scripts

Word Count:
509

Summary:
As two of the most used scripts in computers, CGI and Java Scripts have
their own functions, similarities and differences.


Keywords:
CGi, java scripts


Article Body:
CGI and Java Scripts are both functional with both Netscape and Internet
Explorer browsers. But there is an essential difference between the two.
Java functions as a code executed and downloaded in the clients' side
while CGI operates with the server. Before probing deeper into the
difference of the two, let us first try to understand these two often-
used scripts.

Java Script requires no special plug-ins, and it works transparently
within an HTML page. It animates web page graphics, allows users to
change page elements (background color, display preferences), and allows
site navigation. Usually, Java Scripts are made up of two parts: the Java
Script functions (the instructions for what the Java Script does on the
page) and elements that cause the Java Script functions to execute. These
two go in different ways. The Java Script functions are placed between
special Java Script tags within the head tags in the HTML source. Java
Scripts follow specific punctuation conventions. Usually, Java Script
functions are the last element within the head tag. The elements that
cause the Java Script to execute are placed within the body tags of the
HTML source, depending on where the web page designer wants the Java
Script to run. Because Java Script is included in the other HTML tags in
the page source, a web page with Java Script elements will be saved in
exactly the same format as a web page: the file type should be an ASCII
text, and the file name should have the suffix .html appended to the end
of it. The script's difference from CGI will not be clear unless we
discuss both CGI and Java Scripts.

CGI is the short version of Common Gateway Interface. It is commonly used
in web pages because it allows interactivity by letting the web server
respond to user input through a web page with CGI elements. A common
example of CGI function is a web guest book. A web designer usually
includes a web guest book in the web page so users and visitors can put
in their suggestions. These suggestions are collected by the CGI and e-
mailed to the designer. CGI and Java Scripts also have a similarity. Like
in a Java Script, files used in CGI must be ASCII text with the suffix
.html appended to the end of it. However, if a CGI script will be stored
in the CGI bin, it is most likely that the file must be saved as a Perl
document. Unlike Java Script, where the functions must reside within the
head tags, form elements can be placed wherever the web page designer
wants to put them. The only consideration is that to call the CGI script,
HTML tags should come before the form elements of the page.

Though both scripts have different functions, both CGI and Java Scripts
have undoubtedly improve the way the internet works. They have also
infiltrated the world of movies and televisions with digital films and
fantastic characters. Who knows, maybe more uses of both scripts will be
identified in the future.

				
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