function HomeImgOver(option)
{
	//opacity('box5', 100, 90, 20)
	document.getElementById("homeimg").style.background='#006699 url(\'images/mainhdr_'+option+'.jpg\') no-repeat left top'
	//opacity('box5', 75, 100, 100)		
}

function HomeImgOut()
{
	//opacity('box5', 100, 90, 50)
	document.getElementById("homeimg").style.background='#006699 url(\'images/homepage03.jpg\') no-repeat left top'
	//opacity('box5', 90, 100, 50)
}

if (document.images)
{
  preload_image_object = new Image();
  // set image url
  image_url = new Array();
  image_url[0] = "images/mainhdr_1.jpg";
  image_url[1] = "images/mainhdr_2.jpg";
  image_url[2] = "images/mainhdr_3.jpg";
  image_url[3] = "images/mainhdr_4.jpg";
  image_url[4] = "images/mainhdr_5.jpg";

   var i = 0;
   for(i=0; i<=5; i++) 
	 preload_image_object.src = image_url[i];
}