a.menuInstitucional
{
	 background-image:url('/Style%20Library/IBImages/menu_institucional_off.jpg') 

}

a.menuParticulares
{
 	 background-image:url('/Style%20Library/IBImages/menu_particulares_off.jpg') 	
	
}

a.menuEmpresas
{
	background-image:url('/Style%20Library/IBImages/menu_empresas_on.jpg') 
}

a.menuNegocios
{
	background-image:url('/Style%20Library/IBImages/menu_negocios_off.jpg') 
}