Hi,

I found the soultion what you gave is worth, but i don't want to increase the rowspan, instead i need to make the cell visible to 'false'. And on mouseover i need to highlight the entire <tr> .

 data1    data1     data1    data1
             data1     data1     data1
             data1     data1     data1
data2     data2     data2     data2
data3     data3     data3     data3
             data3     data3     data3
             data3     data3     data3

Thanks in advance