including textarea in one of the column

Our Grid has 4 cloumns and the last column contains a text area.
I have tried to include this text area by writing a html in the data itself
like

var myData = [["12-JAN-2005 00:00", "Phantom", "Waiting",   '<TEXTAREA NAME="" ROWS="1" cols="116" type="text/css" style="FONT-FAMILY: arial; FONT-SIZE: 10;">Processing entered</TEXTAREA>'],

["12-JAN-2005 00:00", "Phantom", "Waiting", '<TEXTAREA NAME="" ROWS="1" cols="116" type="text/css" style="FONT-FAMILY: arial; FONT-SIZE: 10;">Processing entered</TEXTAREA>']

];

But problem with this approach is when i resize my last column size of the textarea doesn't change.

What i want is width of this textarea should change when i resize my column width. Suggest me if you have any ideas how to do it?

You can try to add 'width:100%' to your textarea style attribute. Even better would be to use separate style tag instead of inline styles.