<!--
//sniffer
function Is() {
  var agent = navigator.userAgent.toLowerCase();
  var is_major = parseInt(navigator.appVersion);
  var is_minor = parseFloat(navigator.appVersion);
  this.ns = ((agent.indexOf('mozilla')!=-1) && ((agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1)) && (is_major < 5));
  this.ie = (agent.indexOf("msie") != -1);
  this.dom = ((agent.indexOf('mozilla')!=-1) && (agent.indexOf('gecko') != -1) && (is_major >= 5));
}

var is = new Is();

var shownNav = '';

var startNav = '';

function showLeftNav(divname) {
	if(shownNav != '' && startNav != shownNav) {
		hideLeftNav(shownNav);
	}
	shownNav = divname;
	if(is.ie) {
		document.all[divname].style.display = 'inline';
	} else if(is.ns) { //stupid old netscape
		document[divname].display = 'inline';
	} else {
		document.getElementById(divname).style.display = 'inline';
	}
}

function hideLeftNav(divname) {
	if(is.ie) {
		document.all[divname].style.display = 'none';
	} else if(is.ns) { //stupid old netscape
		document[divname].display = 'none';
	} else {
		document.getElementById(divname).style.display = 'none';
	}
	if(shownNav == divname) {
		shownNav = '';
	}
}

// -->