var xmlHttp
var recId, issueId, interestId

function showRating() {
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) {
		alert ("Your browser cannot display the course information...");
		return;
	} 
	var url="train_ajax.cfm";
	url=url+"?recId="+ document.getElementById("recommendList").value;
	url=url+"&issueId="+ document.getElementById("issueList").value;
	url=url+"&interestId="+ document.getElementById("interestList").value;
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
} 

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