// JavaScript Document
var xmlHttp

function showCourses(str)
{ 
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
	 alert ("Browser does not support HTTP Request")
	 return
	}
	var url="getCourses.php"
	url=url+"?TermName="+str
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
		 document.getElementById("CourseTable").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;
}