#btn_01
{
	height: 35px;
	display: block;
	width: 101px;
	background-image:url(../images/btn_01_about.jpg);
}


#btn_01:hover
{ 
  background-position: 0 -35px;
}

#btn_01 span
{
	display: none;
}

#btn_02
{
	height: 35px;
	display: block;
	width: 81px;
	background-image:url(../images/btn_02_standarts.jpg);
}

#btn_02:hover
{ 
  background-position: 0 -35px;
}

#btn_02 span
{
	display: none;
}

#btn_03
{
	height: 35px;
	display: block;
	width: 151px;
	background-image:url(../images/btn_03_podhod.jpg);
}

#btn_03:hover
{ 
  background-position: 0 -35px;
}

#btn_03 span
{
	display: none;
}

#btn_04
{
	height: 35px;
	display: block;
	width: 151px;
	background-image:url(../images/btn_04_opprogrami.jpg);
}

#btn_04:hover
{ 
  background-position: 0 -35px;
}

#btn_04 span
{
	display: none;
}

#btn_05
{
	height: 35px;
	display: block;
	width: 76px;
	background-image:url(../images/btn_05_obuchenie.jpg);
}

#btn_05:hover
{ 
  background-position: 0 -35px;
}

#btn_05 span
{
	display: none;
}

#btn_06
{
	height: 35px;
	display: block;
	width: 144px;
	background-image:url(../images/btn_06_clients.jpg);
}

#btn_06:hover
{ 
  background-position: 0 -35px;
}

#btn_06 span
{
	display: none;
}

#btn_07
{
	height: 35px;
	display: block;
	width: 144px;
	background-image:url(../images/btn_07_oferta.jpg);
}

#btn_07:hover
{ 
  background-position: 0 -35px;
}

#btn_07 span
{
	display: none;
}

#btn_08
{
	height: 35px;
	display: block;
	width: 102px;
	background-image:url(../images/btn_08_contacts.jpg);
}

#btn_08:hover
{ 
  background-position: 0 -35px;
}

#btn_08 span
{
	display: none;
}