Remove underline in Calendar cotrol

[jackparsana]

--------css---------

.maincalander
{
font-family:verdana,tahoma,helvetica ;
font-size: 11px;
color:Black;
text-decoration:none;
width:250px;
}

.selectedday
{
background-color:Maroon;
text-decoration:none;
color:Red;
}

.disbtn
{
background-color:wheat;
border:#000 solid 1px;

}
.dayheader
{
font-size: 12px;
color:;
font-weight:bold;
}
.nextprevstyle
{
font-family:verdana,tahoma,helvetica ;
font-size: 11px;
color:Aqua;
}

please help me to remove underline. in this code from calender control.
in vs2008.

thanks in advance

jack