April 2012 – Conspectus

Back in the day I found a great application that was Mac and PC compatible called desktoputopia or something like that. That had a bank of 100’s of fantastic images that could be set as random backgrounds, this made working bit more entertaining as variety was added to an otherwise standard routine.

I have uncovered a similar product that works with the now liked wallbase website. This is pulse that has a Microsoft public license and can change the logon and the desktop background on a Windows 7 system. Its fantastic and I have set the search term to India. So all matching images are displayed at regular intervals.

Excellent work to Stealth2009 and Patricker for a great little program.

YPR

Javascript Pt 1

admin

Summary of what JavaScript (JS) is and is not;

JS is a client-side, object-based, case-sensitive language. Whose interpreter is embedded in the web browser software.
Variable names, function names must avoid JS keywords, reserved words and object names.
For JS code each opening HTML <script> tag must assign a MIME type of “text/javascript” to its type attribute
Script block can have single line or multiple line comments
Each JS statement must end with a semicolon.
Inline JS code can be assigned to any HTML event attribute such as onload, or enclosed within a <script> element in the document body section.
All JS code is best located in an external file whose source is specified to a src attribute of the <script> tag.
Unobtrusive JS places all script code in an external file and can specify a function to the window.onload DOM property to set behaviours when the HTML document loads.
JS variables are declared using the var keyword and can store any datatype – boolean, number, string, function or an object.
JS functions are declared using the function keyword. and the function name must have trailing parentheses followed by a pair of braces {} enclosing statements to execute.
A function declaration may specify arguments within its trailing parentheses that must be passed from its caller.
A value can be returned to the caller using the return keyword.
Local variables declared inside a function are only accessible within that function.
Global variables declared outside functions are accessible from within any function within that script.