java script to check if the textboxes in the webpage are empty or not..

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Hello Friends,

I want to know how to write a java script to check if the text-boxes, dropdown list are empty or not. And if they are empty it should call a css class and display a message within that text box.

Posted 10-Jun-12 19:06pm

Nisha.Vasmate

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Vedangi 11-Jun-12 1:15am

You want to display message in same textbox or in different textbox. ??

Sandeep Mewara 11-Jun-12 2:41am

Did you try anything?

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Ganesan Senthilvel · Answer 1 · 2012-06-10T19:19:00

Sample JavaScript to validate the text box is empty or not:

JavaScript

if (document.getElementById('txtName').value=='')
{}

dropdown list select is empty or not:

XML

<select>
<option selected value="123">123</option>
<option value="234">234</option>
</select>