function MouseMove()
  {
   if (event.srcElement.className == 'room')
    {
     //document.title = event.x;
     //event.srcElement.style.backgroundColor = 'rgb(4, 4, 4)';
    }
  }

 function MouseOver()
  {
   if (event.srcElement.src.indexOf('_hover') < 0)
    {
     event.srcElement.src = event.srcElement.src.replace('.png', '_hover.png')
    }
  }

 function MouseOut()
  {
   if (event.srcElement.src.indexOf('_hover') >= 0)
    {
     event.srcElement.src = event.srcElement.src.replace('_hover.png', '.png')
    }
  }