#divcontainer
{
  width: 900px;
  margin: 0 auto;
}
#divwrapper
{
  float: left;
  width: 100%;
}
#divcontent
{  
  margin: 0 160px 0 0; /* margin: 0 160px; */
  padding: 0 10px;
}
#divleft
{
  float: left;
  width: 0px; /* 160 */
  margin-left: -900px;
}
#divright
{
  float: left;
  width: 160px;
  margin-left: -160px;
}
#divfooter
{
  clear: left;
  width: 100%;
}