In the previous post,’Create Dynamic Date Selects‘, we ended up with select lists for the Month, Day and Year. In this post, we’ll make these more intuitive by only displaying the correct number of days for a given month/year combination; Continue reading »
Perhaps you have a textarea pre-filled with instructions, for example, ‘Use this area to write a simple bio about yourself…’. When the user wants to fill in the textarea, he has to delete your instructions first, pretty tedious to say the least.
The complete script can be downloaded here AjaxRequest (30.91 KB) Create your first AJAX Request 
In the last part of this series, we’ll create ‘showdetails.js’. This will turn our web page into a AJAX-powered web page!
In the first part we created the XMLHttpRequest Object. Now we need to create an instance of it.
An example of what you’re creating can be seen here.
The complete script can be downloaded here AjaxRequest (30.91 KB) Create your first AJAX Request
In the first part, we created a function, getRequestObj(), that we can now use to initiate a new XMLHttpRequest object. Continue reading »
Jun 232009
We’ve already covered ‘creating a random image with JavaScript’ but the best way to produce a random image on each page load is to use PHP. Using PHP, you are not relying on the browser supporting JavaScript at all and everyone will see the random images.
OK, to start, we’ll create a function called randomSelect(). This will take two parameters; the directory to scan for images and an array of the allowed file extensions to use.
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