What is JavaScript?
JavaScript is a scripting language originally developed by Netscape to add interactivity and power to web documents. It is purely client side, and runs completely on the client's browser and computer.
Difference betwen Java JavaScript?
Java is completely different from JavaScript- the former is a compiled language while the later is a scripting language.
What is DHTML?
DHTML is the embodiment of a combination of technologies- JavaScript, CSS, and HTML. Through them a new level of interactivity is possible for the end user experience.