retrieving the alt text for a control in the javascript?

I have a image button placed for each row of a datagrid? using item template

I am just adding the alt text for each image at the datarowbound event?

the problem is it possible to retrieve the alt te开发者_如何学编程xt for the images at the mouse over so that I could just display the alt text in the message box

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If you just want text to appear in the tool tip when the mouse cursor is hovering over the image, use the title attribute instead.