function switchOn (number)
{
  if (document.images && switches)
    document['switch_'+number].src=switches[number-1].on.src
}

function switchOff (number)
{
  if (document.images && switches)
    document['switch_'+number].src=switches[number-1].off.src
}

function Switch (path, name)
{
  if (document.images)
  {
    this.on=new Image ()
    this.on.src=path+name+'_On.jpg'
    this.off=new Image ()
    this.off.src=path+name+'_Off.jpg'
  }
}