// JavaScript AJAX Functions for Zachary Church's online resume
var xmlHttp

function getContent(str)
{ 
	//document.getElementById("ResumeContent").innerHTML="<center><img src='images/WaitLoading.gif'/></center>";
	document.getElementById("ResumeContent").innerHTML="" 
	document.getElementById("LoadingBar").src="images/ResumeProgressBar_Loading.gif";
	if (str.length > 0)
	{ 
		//document.getElementById("ResumeContent").innerHTML="Before request is sent..."
		var url="resumecontent.php?sid="+Math.random()+"&pg="+str
		//document.getElementById("ResumeContent").innerHTML="After request is sent..."
		//var url="resumecontent.php?pg="+str
		xmlHttp=GetXmlHttpObject(stateChanged) 
		xmlHttp.open("GET", url , true) 
		xmlHttp.send(null) 
	} 
	else
	{ 
		document.getElementById("ResumeContent").innerHTML="" 
		document.getElementById("LoadingBar").src="images/ResumeProgressBar_Blank.gif";
	} 
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		document.getElementById("ResumeContent").innerHTML=xmlHttp.responseText 
		//document.getElementById("ResumeContent").innerHTML+="Writing content..."
		document.getElementById("LoadingBar").src="images/ResumeProgressBar_Blank.gif";
	} 
}  

function GetXmlHttpObject(handler)
{ 
	var objXmlHttp=null
	
	if (navigator.userAgent.indexOf("Opera")>=0)
	{
		alert("This example doesn't work in Opera") 
		return 
	}
	if (navigator.userAgent.indexOf("MSIE")>=0)
	{ 
		var strName="Msxml2.XMLHTTP"
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
		{
			strName="Microsoft.XMLHTTP"
		} 
		try
		{ 
			objXmlHttp=new ActiveXObject(strName)
			objXmlHttp.onreadystatechange=handler 
			return objXmlHttp
		} 
		catch(e)
		{ 
			alert("Error. Scripting for ActiveX might be disabled") 
			return 
		} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0)
	{
		objXmlHttp=new XMLHttpRequest()
		objXmlHttp.onload=handler
		objXmlHttp.onerror=handler 
		return objXmlHttp
	}
}