The use of java script (almost forget to tell you)

java script commonly use on website building , to make its better looks and many more today
- give HTML desingner a programing tool it surely do with a very simple syntax
- give dynamic view for the content of their site
   ex :  document.write("<h2>" + name + "</h2>" which the word name is a variable that dinamycally follow
   the Instruction
- can do some even after finish loading page or on load a page
- validating the data commonly is the main purpose, many site take the java script
- create cookies to store and retrieve the visitors on cumputers
many more you can discover on this java script so keep learn and stay sharp........