I found my own solution now.
for (var i = 1; i < grid.rows.length; i++)
{
var links = grid.rows[i].getElementsByTagName("a");
if(links[1].style.color=="red")
{
var spanlist = grid.rows[i].getElementsByTagName("span");
pid=spanlist[1].innerHTML;
links[1].style.color="blue";
}
}