function RotateImages(whichHolder, Start) {
	var ImageArr1 = new Array("big_banner1.png","big_banner2.png","big_banner3.png");
	var ImageHolder1 = document.getElementById('big_banner');
  
	var a = eval("ImageArr"+whichHolder);
	var b = eval("ImageHolder"+whichHolder);
	if(Start>=a.length)
		Start=0;
	b.src = 'images/' + a[Start];
	window.setTimeout("RotateImages("+whichHolder+","+(Start+1)+")",10000);
}



function getHTTPObject() {
	var xhr = false;
	if (window.XMLHttpRequest) {
		xhr = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		try {
			xhr = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) {
			try {
				xhr = new ActiveXObject("Microsoft.XMLHTTP");
			} catch(e) {
				xhr = false;
			}
		}
	}
	return xhr;
}

function grabFile(file, id) {
	var request = getHTTPObject();
	if (request) {
		request.onreadystatechange = function() {
			parseResponse(request, id);
		};
		request.open("GET", file, true);
		request.send(null);
	}
}

function parseResponse(request, id) {
	if (request.readyState == 4) {
		if (request.status == 200 || request.status == 304) {
			var details = document.getElementById(id);
			details.innerHTML = request.responseText;
		}
	}
}

function loadRecogniaPanels() {
	if (document.getElementById('bullish_panel'))
		grabFile('mod-perl/recognia_panels.pl', 'bullish_panel');
	
	if (document.getElementById('bearish_panel'))
		grabFile('mod-perl/recognia_panels.pl?wid=bearish', 'bearish_panel');
}

function changeEducationSection(SECTION) {

	document.getElementById('Classic').style.display = 'none';
	document.getElementById('Short-term').style.display = 'none';
	document.getElementById('Indicators').style.display = 'none';
	document.getElementById('Oscillators').style.display = 'none';
	document.getElementById(SECTION).style.display = 'inline';	
}