browser = (document.images)

  if (browser)
  {
    normal = new createArray(10)
    over = new createArray(10)

    normal[0].src = "../media/d_nav_1.gif"
    normal[1].src = "../media/d_nav_2.gif"
	normal[2].src = "../media/d_nav_3.gif"
	normal[3].src = "../media/d_nav_4.gif"
	normal[4].src = "../media/d_nav_5.gif"
	normal[5].src = "../media/d_nav_6.gif"
	normal[6].src = "../media/logo_08_k.gif"
	normal[7].src = "../media/d_nav_7.gif"
	normal[8].src = "../media/d_nav_8.gif"
	normal[9].src = "../media/d_2_2.gif"
	
    over[0].src = "../media/d_nav_1_a.gif"
    over[1].src = "../media/d_nav_2_a.gif"
	over[2].src = "../media/d_nav_3_a.gif"
	over[3].src = "../media/d_nav_4_a.gif"
	over[4].src = "../media/d_nav_5_a.gif"
	over[5].src = "../media/d_nav_6_a.gif"
	over[6].src = "../media/home_08_k.gif"
	over[7].src = "../media/d_nav_7_a.gif"
	over[8].src = "../media/d_nav_8_a.gif"
	over[9].src = "../media/home.gif"
	
  }
  
  function createArray(n)
  {
    this.length = n
    for (var i = 0; i<=n; i++)
    {
      this[i] = new Image()
    }
    return this
  }
	                
  function roll(img,x)
  {
    if (browser)
	{
	  document [img].src = over[x].src
	}
  }

  function unroll(img,x)
  {
    if (browser)
	{
	  document [img].src = normal[x].src
	}
  }