Which one is the better tool for client side validation? I am using java script .Can any one suggests which one is the better?
NJ website development

Hello newage123,

Welcome to the Java Programming Forums.

Firstly, Java & Java Script are two completely different languages.

"There's a world of difference between the two. Javascript is used for front-end web development while Java can only be used as a back-end language within a web environment. Java doesn't need a web browser to compile and execute like Javascript does. Java is compiled prior to runtime while Javascript is compiled at runtime. The syntax/reserved-words are also different."

For more information:
JavaScript Resources - Differences between Java and JavaScript

I don't know much about VBScript but take a look at this link. It should help:

Comparison of VBScript/Javascript Validation Functions