/*************		BEGIN PRELOAD OF BACKGROUND IMAGES 	*************/
function doPreload()
{
   var the_images = new Array('/wbdiscover/images/splash_1.jpg','/wbdiscover/images/splash_2.jpg','/wbdiscover/images/splash_3.jpg',
	   '/wbdiscover/images/splash_4.jpg','/wbdiscover/images/splash_5.jpg','/wbdiscover/images/splash_6.jpg');
   preloadImages(the_images);
}

function preloadImages(the_images_array) {

   for(var loop = 0; loop < the_images_array.length; loop++)
   {
 	var an_image = new Image();
	an_image.src = the_images_array[loop];
   }
}
/*************		END PRELOAD OF BACKGROUND IMAGES	*************/


/*************		BEGIN FUNCTION TO CHANGE THE BACKGROUND IMAGE ON THE HOME PAGE 	*************/

	var images = new Array(6);
	
	var textArray = new Array(6);
	
	var url = new Array(6);

	images[0] = '/wbdiscover/images/splash_1.jpg';
	images[1] = '/wbdiscover/images/splash_2.jpg';
	images[2] = '/wbdiscover/images/splash_3.jpg';
	images[3] = '/wbdiscover/images/splash_4.jpg';
	images[4] = '/wbdiscover/images/splash_5.jpg';
	images[5] = '/wbdiscover/images/splash_6.jpg';
	
	textArray[0] = '<a href =\'/wbdiscover/article?id=ar831704\'>Which animal eats only the leaves of this giant grass?</a>';
	textArray[1] = '<a href =\'/wbdiscover/article?id=ar830555\'>This popular tourist feature is located in which country?</a>';
	textArray[2] = '<a href =\'/wbdiscover/article?id=ar831593\'>What is the name of Japan\'s sacred, snow-capped mountain?</a>';
	textArray[3] = '<a href =\'/wbdiscover/article?id=ar831924\'>Which planet is famous for its bright, beautiful rings?</a>';
	textArray[4] = '<a href =\'/wbdiscover/article?id=ar830202\'>On which mountain range did downhill skiing begin?</a>';
	textArray[5] = '<a href =\'/wbdiscover/article?id=ar831832\'>To which group of animals do lizards belong?</a>';
	
	url[0] = '/wbdiscover/article?id=ar831704';
	url[1] = '/wbdiscover/article?id=ar830555';
	url[2] = '/wbdiscover/article?id=ar831593';
	url[3] = '/wbdiscover/article?id=ar831924';
	url[4] = '/wbdiscover/article?id=ar830202';
	url[5] = '/wbdiscover/article?id=ar831832';
	
	var icurrentImage=0;

function changeback(){	
	
	var objDiv = document.getElementById("home-center-top");
	
	var i = Math.floor(Math.random() * images.length);
	icurrentImage=i;
	objDiv.style.backgroundImage = 'url(' + images[i] + ')';
	objDiv.innerHTML = '';
	setTimeout('changeback()',10000);
}
/*************		END FUNCTION TO CHANGE THE BACKGROUND IMAGE ON THE HOME PAGE 	*************/

function showlink()
{
    location.href=url[icurrentImage];
}