var xmlHttp;

function showPhoneDirectory(str)
{
	xmlHttp = GetXmlHttpObject();
	if(xmlHttp == null)
	{
		alert("Your browser does not support AJAX!");
		return;
	}
	
	var url = "/directory/asp/getPhoneDirectory.asp";
	url = url + "?q=" + str;
	url = url + "&sid=" + Math.random();
	xmlHttp.onreadystatechange = stateChanged;
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
}

function stateChanged()
{
	if(xmlHttp.readyState == 4)
	{
		document.getElementById("campusPhoneDirectory").innerHTML = xmlHttp.responseText;
	}
}

function GetXmlHttpObject()
{
	var xmlHttp = null;
	
	try {
		// Firefox, Opera 8.0+, Safari
		xmlHttp = new XMLHttpRequest();
	}
	catch(e)
	{
		// Internet Explorer
		try {
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e)
		{
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	
	return xmlHttp;
}