access textbox value which is in datagrid with javascript

Hi;

I have a datagrid which has some textboxes and other controls. I want to clear the text in textbox when the user focus the textbox.

How can I do that ? if someone tell me how can i access the value of the textbox in datagrid with javascript, I will be very happy

Thanks

 

add onfocus="this.value='';" to the textox ... like this:

 

it works good thank you. I have another question related to it, I want to control the value first, then I want to clear it.

For example:

if (value="qwerty")
{
this.value='';
}

Can I do it with function like above ? and HOW ?

 

quick an easy way would be this:

try type "qwerty" put the focus out of the field and then back in it will work ...

Alternative is to write a function and then call that function but not absolutely necessary I suppose.

 

it works fine

Thanks a lot

 

use substr() function to replace values.