if (document.images) {
    icon_alicaup       = new Image();
    icon_alicaup.src   = "images/icon_alicia.gif" ;
    icon_alicadown     = new Image() ;
    icon_alicadown.src = "images/icon_default.gif" ;
}
function buttondown( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "down.src" );
    }
}
function buttonup ( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "up.src" );
    }
}

function doWhoStaff (filename, is_on)
{
	if (is_on)
	{
		document["icon_holder"].src = "images/icon_"+filename+".gif";	
	}
	else
	{
		document["icon_holder"].src = "images/icon_default.gif";
	}
}