var ie = (!window.opera && document.all);
var dom = (!document.all && document.getElementById);
var gallery_index = 0;
var description_index = 0;

function ajaxManager()
	{
		
	var args = ajaxManager.arguments;
	switch (args[0])
		{
		case "array_setup":
			galleryArray = new Array();
			var temp = Math.random();
			temp = 1;
			galleryArray[0] = "/ETradeshow/Admanagement/homePageImages.asp"
			descriptionArray = new Array();
			
			break;
		case "load_page":
			var x = (window.ActiveXObject) ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
			pageWidth = (dom) ? innerWidth : document.body.clientWidth;
			
			gallery = document.getElementById("galleryLYR");
			
			if (x)
				{
				x.onreadystatechange = function()
					{
						//alert(x.status);
						
					if (x.readyState == 0)
						{
						
						}
					else if (x.readyState == 1)
						{
						
						}
					else if (x.readyState == 2)
						{
						
						}
					else if (x.readyState == 3)
						{
						
						}
					else if (x.readyState == 4 && (x.status == 200))
						{
						var t = x.responseText;
						el = document.getElementById(args[2]);
						el.innerHTML = t
						//getImageSize = document.getElementsByTagName("img")[0].getAttribute("width");
						}
					}
				x.open("GET", args[1], true);
				x.send(null);
				}
			break;

		case "cycle_gallery":
			if (args[1] == 'forw' && gallery_index != galleryArray.length - 1)
				{
				ajaxManager('load_page', galleryArray[gallery_index], 'galleryLYR');
				ajaxManager('load_page', descriptionArray[description_index], 'captionLYR');
				}
			else if (args[1] == 'rev' && gallery_index != 0)
				{
					ajaxManager('load_page', galleryArray[gallery_index], 'galleryLYR');
				}
			break;
		case "hide_access":
			break;
		case "load_fx":
			document.getElementById('accessLYR').style.visibility = "hidden";
			break;
		case "start_up":
			ajaxManager('hide_access');
			ajaxManager('array_setup');
			ajaxManager('load_page', galleryArray[gallery_index], 'galleryLYR');
			break;
		}
	}