Javascript code for validating textbox

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Hi all, i am working on asp.net, for example in a form they are 10 text boxes i want to validate each textbox if it is empty it should display a alert message.

The following code shows the implementation of this validate() function.

Now that we have the static code, we can add the scripting.

The first thing we’ll need is a basic property (the dot property only matches states which are set through scripting).

For legacy browsers that don’t implement these attributes, we can use their values as the basis of a polyfill.

We can also use them to provide a more interesting enhancement – instant form validation.

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It assumes that all textareas on your form must be non-blank but you could easily change that if needed.

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