function getBanner()
{ 
		
	xmlHttp=GetXmlHttpObject();
	
	if (xmlHttp==null)
	{
		alert ("Your browser does not support AJAX! Please upgrade your browser.");
		return;

	}
	
	var url="http://art.uakron.edu/image-list/";
	xmlHttp.onreadystatechange = stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send("");
	
}

function stateChanged() 
{ 
	
	if (xmlHttp.readyState == 4) {        
        
        if (xmlHttp.status == 200) {

		var xmlDoc=xmlHttp.responseText;
		var imageList =xmlDoc.split(";");	
		
		var randomImage = Math.round( ((imageList.length/4) -1 ) * Math.random());
		var randomImage = randomImage*4;
		
		document.getElementById('inside_banner').style.backgroundImage = "url("+imageList[randomImage]+")";
		document.getElementById('inside_banner').style.backgroundPosition = "center";
		
		document.getElementById('banner_title').innerHTML = imageList[randomImage+1] + "<BR>";
		document.getElementById('banner_artist').innerHTML = imageList[randomImage+2] + " :";
		document.getElementById('banner_major').innerHTML = imageList[randomImage+3];


        } else {
            alert("There was a problem retrieving the XML data:\n" + req.statusText);
        }
    }


		

}


function GetXmlHttpObject()
{
	var xmlHttp=null;
	
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	
	catch (e)
	{
	  // Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		
		catch (e)
		{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
		
	}
	  
	return xmlHttp;
}