How to change Mouse Pointer onmouseover using Javascript

JavaScript is a strong tool to work with Web Technology. You can complete all the tasks using JavaScript.

For ex. I have a task to chnage mouse pointer on mouse hover. The answer is too simple
use CSS.No, my css is not working due to some un avoidable reasons.

Finally I come to the conclusion i.e

Make a global.js contains

function set_mouse_pointer(obj)
{
obj.style.cursor='pointer';
}

Then implement this function like

Steps:
1) Put an HTML button of the page
2) Then on onmouseover event write code "onmouseover="set_mouse_pointer(this);"
3) View that page in browser.

You will see the effect.

This is a simple example of JavaScript. What you can do with JavaScript.

Please let me know if you have any major issues related to JavaScript