Making Ajax calls using the XmlHttpRequest object is a well established technique for generating dynamic server requests.
One of the first impressions a user gets is loading your web application for the first time.
Upvote your favorite resources to improve the accuracy of the ranking :)
This photo is not a PNG image with an alpha channel. There have been many times I have come across the need to take an image and cut an irregular shape out of it. Normally, when a developer comes across this requirement, the only thing to do is to open the image up with your favorite graphics editor, use the select tool to cut out the shape you want, and then save the result as a PNG , since it is the only image format used by all web browsers that support alpha channels.
<form name="lst" id="lst" method="post" action="..