function ajaxRequest(url,data) {

	new Ajax.Request(url,{method:'post',parameters:data,onComplete:displayCart});

}

function displayCart() {

	new Ajax.Updater('cart','AJAX/displaycart.php',{});

}

var delay = 3000;
var start_frame = 0;

function init() {

	var lis = $('slide-images').getElementsByTagName('li');
	
	for( i=0; i < lis.length; i++){		
		if(i!=0){
			lis[i].style.display = 'none';
		}
	}
	end_frame = lis.length -1;
	
	start_slideshow(start_frame, end_frame, delay, lis);
	
	
}

function start_slideshow(start_frame, end_frame, delay, lis) {

	setTimeout(fadeInOut(start_frame,start_frame,end_frame, delay, lis), delay);

}


function fadeInOut(frame, start_frame, end_frame, delay, lis) {

	return (function() {

		lis = $('slide-images').getElementsByTagName('li');
		Effect.Fade(lis[frame]);
		if (frame == end_frame) { frame = start_frame; } else { frame++; }
		lisAppear = lis[frame];
		setTimeout("Effect.Appear(lisAppear);", 0);
		setTimeout(fadeInOut(frame, start_frame, end_frame, delay), delay + 1850);

	})

}

Event.observe(window, 'load', init, false);

if (document.images) {

	preload_image_object = new Image();
	image_url = new Array();
	image_url[0] = "content/site/image/aviation.jpg";
	image_url[1] = "content/site/image/medical.jpg";
	image_url[2] = "content/site/image/scientific.jpg";
	image_url[3] = "content/site/image/industrial.jpg";

	var i = 0;
	for(i=0; i<=3; i++) 
		
		preload_image_object.src = image_url[i];

}