function display_text(htmltext, target){
	var x = htmltext.indexOf("<body");
	x = htmltext.indexOf(">", x);    
	var y = htmltext.lastIndexOf("</body>"); 
	htmltext = htmltext.slice(x + 1, y);
	if (typeof target == "string") target = document.getElementById(target);
	target.innerHTML =  htmltext;
}

function changepanel (tid, type){

	d = new Date();
	rt = d.getMilliseconds();
	url = "random.php?t=" + type + "&r=" + rt;

	var target = document.getElementById(tid);
	var request = HTTP.newRequest();
	request.onreadystatechange = function() {
		if (request.readyState==4) { 
			if (request.status == 200){
				display_text(request.responseText, target);
			}
		}
	}
	request.open("GET", url, true);
	request.setRequestHeader("User-Agent", "XMLHttpRequest");
	request.send(null);
	return(false);
}

function SwapPanels(){
	SwapPanel("P1", 'w',8000);
	SwapPanel("P2", 'n',12200);
	SwapPanel("P3", 'w',4600);	
	SwapPanel("Q1", 'q',10000);	
}

function SwapPanel(panel, type, delay){
	changepanel(panel, type);
	var tfs = 'SwapPanel("' + panel + '","' + type + '",'+ delay +');';
	t=setTimeout(tfs,delay);
}