Hiding one td and collapse other td in row for not showing space between the tds

[Bullettproof]

Code snippet:\[code\]<tr><td><imagebutton>..</imagebutton></td><td><imagebutton>..</imagebutton></td><td><imagebutton>..</imagebutton></td><td><imagebutton>..</imagebutton></td><tr>\[/code\]I am hiding specific td from codebehind depending upon the permission and I have not specify the width of these tds respectivly.so as a result there are odd spaces between final tds.Please find the images :All tdsfew td hiddenPlease tell how can i align resulted tds in a row without showing the spaces between.