function updateNotes() {
	try{
		document.getElementById('waiter').src="http://www.protonotes.com/images/wait.gif";
		removeAllNotes();
		//var page = frames['webFrame'].location.href;
		//var page = "http://www.useit.com/"
		var page = gup('startpage');
		if (page=="") {
			page="http://www.useit.com/";
		}
		if (page.indexOf("http://")==-1) {
			page="http://"+page;
		}
					
		//page = page.substring(page.lastIndexOf('=')+1,page.length);
		var groupnumber=gup('groupnumber');
		var url = "http://www.protonotes.com/getNotes.php?page="+escape(page)+"&groupnumber="+groupnumber;
		http.open("POST", url , true);
		http.onreadystatechange = handleHttpResponse2;	
		http.send(null); 
		int2=window.clearInterval(int2);
	} catch(err) {
		var int2=self.setInterval("updateNotes()",100);
	}
}

function removeAllNotes() {
	allDivs =document.getElementsByTagName('div');
	numOfDivs = allDivs.length;
	tempCounter=0;
	var notesToBeDeleted = new Array();
	// get all notes DIVS
	for (var i = 0; i < numOfDivs; i++) {
		//try {
			if (allDivs[i].className=="notesLayer") {
				//allDivs[i].removeNode(true);
				notesToBeDeleted[tempCounter]=allDivs[i];
				tempCounter=tempCounter+1;
			}
		//}
		//catch(err) {
			//return (false);
		//}
	}
	if (tempCounter>0) {
		for (var i = 0; i < notesToBeDeleted.length; i++) {
			notesToBeDeleted[i].removeNode(true);
		}
	}
}