We've covered reading and writing text to a web page, and this is another example of writing text to the inner HTML section of a div.
Remember that the inner HTML property writes any tags or text within the opening and closing div tag.
Notice that we don't need the "window" object since Java Script inherits the main DOM methods and understands that this is an internal method.I have a multiline text area which accepts 42 characters and if the user exceeds the limit and clicks on submit button, he will get a alert message like 'exceeded the limit so remove '***' characters. But my problem is I should get the same alert message once I de-focus the control from the text box area instead of clicking on submit button. Additional requirement: After getting the alert message and clicking on ok button,the extra characters should be deleted. In other words, using "window.confirm()" and "confirm" results in the same function.Java Script handles the inheritance for you, so you don't need to remember to use the window object.
Use this method to get a short string response from your users before they access a page or before they move on to another page in your site structure.