[RESOLVED] function will not work if another function is called first

**kaiser0427** · 01-13-2009 01:48 PM

the following code showFeb() will work unless I call showJan() first. the error message I get is "title is null." I have tried calling getData() again in the function but that didn't work either.

Any help will be appreciated.

Code:

function getData(dataSource, divID) {
	 var mozillaFlag = false;
	 var XMLHttpRequestObject = false;  //create XMLHttpRequest object
	 
	 if (window.XMLHttpRequest) {
	 	XMLHttpRequestObject = new XMLHttpRequest();
		mozillaFlag = true;
		} 
	 else if (window.ActiveXObject) {
	 	XMLHttpRequestObject = new
			ActiveXObject ("Microsoft.XMLHTTP");
		}	 // end XMLHttpRequest object
	 
	 if (XMLHttpRequestObject) {  //download the data
		var obj = document.getElementById(divID);
	 	XMLHttpRequestObject.open("GET", dataSource);
	
		XMLHttpRequestObject.onreadystatechange = function() {
			if (XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200) {  // got the data
				obj = XMLHttpRequestObject.responseXML;
				loadNodes(obj); //passes source XML document to displayBusinesses function in variable xmlDocument
			}
	  	}
	    XMLHttpRequestObject.send(null);
	 }
}
function loadNodes(calObj) {
	calendarNode = calObj.getElementsByTagName("calendar");
	monthNode = calObj.getElementsByTagName("month");
	eventStartNode = calObj.getElementsByTagName("eventStart");
	eventEndNode = calObj.getElementsByTagName("eventEnd");
	eventNameNode = calObj.getElementsByTagName("eventName");
	locationNode = calObj.getElementsByTagName("location");
	detailsNode = calObj.getElementsByTagName("details");
	phoneNode = calObj.getElementsByTagName("phone");
	webNode = calObj.getElementsByTagName("web");
}
function showJan(){
	var temp = document.getElementById("events");
	temp.innerHTML = "sorry no events for Janurary";
}
function showDetails() {
																	//get value of each eventName nodes and add link to the details
}
function showFeb() {
var debug = document.getElementById("eventDetails");
	var counter;
	var showEvents = [];
	var title = document.getElementById("eventsTitle");
	title.innerHTML = "February Calendar Events";
	var div = document.getElementById("eventsBody");
	div.innerHTML = " ";
	for (counter=0; counter < monthNode.length; counter++) {
		if (monthNode[counter].firstChild.nodeValue.match("February")) {
			showEvents = eventNameNode[counter].firstChild.nodeValue;
			var newDiv = document.createElement("div");
			var newText = document.createTextNode(showEvents);
			newDiv.appendChild(newText);
			div.appendChild(newDiv);
		}
		//debug.innerHTML = eventNameNode[counter].firstChild.nodeValue; 
	}
}

HTML Code:

<body onload="getData('xmlData/calendar.xml')">

**kaiser0427** · 01-13-2009 02:37 PM

I have resolved this issue with the following code.

Code:

function showJan(){
	var title = document.getElementById("eventsTitle");
	title.innerHTML = "Janurary Calendar Events";
	var eventsBody = document.getElementById("eventsBody");
	eventsBody.innerHTML = "sorry no events for Janurary";
}
function showDetails() {
																	//get value of each eventName nodes and add link to the details instance of "a"
}
function showFeb() {
var debug = document.getElementById("eventDetails");
	var counter;
	var showEvents = [];
	var title = document.getElementById("eventsTitle");
	title.innerHTML = "February Calendar Events";
	var div = document.getElementById("eventsBody");
	div.innerHTML = " ";
	for (counter=0; counter < monthNode.length; counter++) {
		if (monthNode[counter].firstChild.nodeValue.match("February")) {
			showEvents = eventNameNode[counter].firstChild.nodeValue;
			var newDiv = document.createElement("div");
			var newText = document.createTextNode(showEvents);
			newDiv.appendChild(newText);
			div.appendChild(newDiv);
		}
		debug.innerHTML = eventNameNode[counter].firstChild.nodeValue; 
	}
}

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