// JavaScript Document

var present_slide=0;

var eng_images = new Array('images/onlinebanners/Revolving-banner-ONE.jpg', 'images/onlinebanners/Revolving-banner-TWO.jpg', 'images/onlinebanners/Revolving-banner-THREE.jpg', 'images/onlinebanners/Revolving-banner-FOUR.jpg');

var span_images = new Array('images/onlinebanners/Los-herbicidas.jpg', 'images/onlinebanners/El-aceite.jpg', 'images/onlinebanners/Las-aguas.jpg', 'images/onlinebanners/El-excremento.jpg');

var num_images = 4;

objEngImage = new Image();
objSpanImage = new Image();

function download(img_src){
// preload the image file
objEngImage.src = eng_images[img_src];
objSpanImage.src = span_images[img_src];
}

function displaynext(shift){
	present_slide = present_slide + shift;
	
	if(eng_images.length > present_slide && present_slide >= 0){
	//document.images[''im''].src = images[present_slide];
		document.images["bannereng"].src = eng_images[present_slide];
		document.images["bannerspan"].src = span_images[present_slide];
	
		var next_slide=present_slide + 1;
		download(next_slide); // Download the next image
		setTimeout("displaynext(1)", 5000);
	}
	if (present_slide == 4){
		present_slide = 0;
		displaynext(0);
	}
}