function ajaxswitchdiv(url, id) {
	//safe function to show an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		if (document.getElementById(id).style.display == 'block'){
			document.getElementById(id).style.display = 'none';
			//document.getElementById(id).innerHTML = "";
		}else{
			document.getElementById(id).style.display = 'block';
			ajax_get (url, id);
		}
	}
	else {
		if (document.layers) { // Netscape 4
			if (document.id.display == 'block'){
				document.id.display = 'none';
				//document.id.innerHTML = '';
			}else{
				document.id.display = 'block';
				ajax_get (url, id);
			}
		}
		else { // IE 4
			if (document.all.id.style.display == 'block'){
				document.all.id.style.display = 'none';
				//document.all.id.innerHTML = '';
			}else{
				document.all.id.style.display = 'block';
				ajax_get (url, id);
			}
		}
	}
}

function switchdiv(show, hide) {
	hidediv(hide);
	showdiv(show);
}

function boolswitchdiv(id) {
	//safe function to show an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		if (document.getElementById(id).style.display == 'block'){
			document.getElementById(id).style.display = 'none';
		}else{
			document.getElementById(id).style.display = 'block';
		}
	}
	else {
		if (document.layers) { // Netscape 4
			if (document.id.display == 'block'){
				document.id.display = 'none';
			}else{
				document.id.display = 'block';
			}
		}
		else { // IE 4
			if (document.all.id.style.display == 'block'){
				document.all.id.style.display = 'none';
			}else{
				document.all.id.style.display = 'block';
			}
		}
	}
}

function hidediv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}