function getHTTPObject()
{
	if (typeof XMLHttpRequest != 'undefined')
	{
		return new XMLHttpRequest();
	}
	try
	{
		return new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch (e)
	{
		try
		{
			return new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch (e)
		{}
	}
	return false;
}

function deptSelect()
{
	httpObject = getHTTPObject();
	if (httpObject != null)
	{
		httpObject.open("GET", "classes2.php?id="+document.getElementById('sid').value+"&dept="+document.getElementById('dept').value, true);
		httpObject.onreadystatechange = setClass;
		httpObject.send(null);
	}
}

function classSelect()
{
	httpObject = getHTTPObject();
	if (httpObject != null)
	{
		httpObject.open("GET", "classes2.php?id="+document.getElementById('sid').value+"&dept="+document.getElementById('dept').value+"&class="+document.getElementById('class').value, true);
		httpObject.onreadystatechange = setSection;
		httpObject.send(null);
	}
}

function sectionSelect()
{
	window.location = "http://www.myecubby.com/classes2.php?id="+document.getElementById('sid').value+"&dept="+document.getElementById('dept').value+"&class="+document.getElementById('class').value+"&section="+document.getElementById('section').value;
}

function setClass()
{
	if(httpObject.readyState == 4)
	{
		var combo = document.getElementById('class');
		combo.options.length = 0;
		var response = httpObject.responseText;
		var items = response.split(";");
		var count = items.length + 1;
		combo.options[0] = new Option('Select your class...', 'Select your class...');
		for (var i=1;i<count;i++)
		{
			combo.options[i] = new Option(items[i-1],items[i-1]);
		}
	}
}

function setSection()
{
	if(httpObject.readyState == 4)
	{
		var combo = document.getElementById('section');
		combo.options.length = 0;
		var response = httpObject.responseText;
		var items = response.split(";");
		var count = items.length+1;
		combo.options[0] = new Option('Select your section...', 'Select your section...');
		for (var i=1;i<count;i++)
		{
			combo.options[i] = new Option(items[i-1],items[i-1]);
		}
	}
}