/* ******************************************************************************
******************************** getXMLHTTPRequest ******************************
*********************************************************************************
Creates an xmlhttp object used for loading xml file                            */
function getXMLHTTPRequest()
{ 
	var req = null;
	
	if (window.XMLHttpRequest)
		req = new XMLHttpRequest();
	else if (window.ActiveXObject)
		req = new ActiveXObject("Microsoft.XMLHTTP");
	return req;
}

/* ******************************************************************************
******************************** changeContent **********************************
*********************************************************************************
Changes the content on the screen. The content comes from an xml file          */
function changeContent(toChange)
{
	var xhttp = getXMLHTTPRequest();
	xhttp.open("GET","WineOnADime/winedine.xml",false);
	xhttp.send("");
	xmlDoc=xhttp.responseXML;

	if (toChange == 1)
	{
		document.getElementById("content").innerHTML=
		xmlDoc.getElementsByTagName("content")[0].childNodes[0].nodeValue;
	}
	else if (toChange == 2)
	{
		document.getElementById("content").innerHTML=
		xmlDoc.getElementsByTagName("content")[1].childNodes[0].nodeValue;
	}
	else
	{
		document.getElementById("content").innerHTML=
		xmlDoc.getElementsByTagName("content")[2].childNodes[0].nodeValue;
	}

}

function emphasize(num)
{
	document.getElementById("info" + num).className = "emphasize";
}

function normal(num)
{
	document.getElementById("info" + num).className = "normal";
}


function btnFocus(num)
{
	document.getElementById("btn" + num).src = "images/btn" + num + "_2.gif";
}

function btnNotFocused(num)
{
	document.getElementById("btn" + num).src = "images/btn" + num + "_1.gif";
}