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Still now many peoples are using the query string parameters while creating jquery code for posting their form using ajax method of jquery. We have to spend lot of time in creating the dataString value if the form has lot of elements.

In this post I will show how this 'focus' and 'blur' events are useful to us. In the previous post the addClass and removeClass functions triggered on mouseover and mouseout events. In this example let's see how these functions get triggered in blur and focus events. In this example used form input field. These two functions get triggered when focus and blur the textbox.