function loadNav(id)
{
var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("nav_container_2").innerHTML=xmlhttp.responseText;
    }
  }
xmlhttp.open("GET","_inc/nav_gen.php?id="+id,true);
xmlhttp.send();
}




/*
var on = new Boolean();
on = false;

function toggle(num){

	var ele = document.getElementById("nav_group_"+num);
	//var text = document.getElementById("displayText");
	if(on == true) {
			ele.style.opacity = 0;
			ele.style.height = '0px';
			on = false;
  	}
	else {

		ele.style.opacity = 1;
		ele.style.height = '100px';
		on = true;
	}

}

function toggle(num){

	var ele = document.getElementById("nav_group_"+num);
	//var text = document.getElementById("displayText");
	if(ele.style.display == "block") {
    		ele.style.display = "none";
		//text.innerHTML = "show";
  	}
	else {
		ele.style.display = "block";
		//text.innerHTML = "hide";
	}

}
*/