// JavaScript Document
//Create a boolean variable to check for a valid Internet Explorer instance.
var xmlhttp = false;
var myError = new Error("errorMessage");

//Check if we are using IE.
try{
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
	//If not, then use the older active X object.
	try {
		//If we are using IE.
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (e) {
	//Else we must be using a non-IE browser.
		xmlhttp = false;
	}
}

//If we are using a non-IE browser, create a javascript instance of the object.
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
	xmlhttp = new XMLHttpRequest();
}
//}

function populateDept(id){
	var serverPage = 'pop_depts.php';
	var qry = "category_id="+ id;
	var url = serverPage;
	var objID = 'dept';
	xmlhttp.open('POST',url,true);
	xmlhttp.onreadystatechange = function(){
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200){
			document.getElementById(objID).innerHTML = xmlhttp.responseText;
		} else {
			document.getElementById(objID).innerHTML = 'Please wait...';
		}
	}
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlhttp.send(qry);
}