Highlight search text in textarea

I have to highlight the search terms in the text area.

I have one text Filed,search Button and text area.

Quote ...

After i have enter the search string in the text field whenever i click the search button it highlight the search terms which is available in the text area and focus the search term in text area.

I have try to do this by using jquery.

But in mozilla,I can't get the focus to the search term at the time of search.

I have to scroll down the text area for find the focused search term.

In I.E. also it doesn't wo开发者_如何学Pythonrk properly. 

Otherwise if any post related to highlight search term in text area is also appreciable.

Please guide me to achieve this.

On Internet Explorer, I'd combine the use of TextRange object with the boundingTop property value.