var xmlHttp = new Array()

function GetXmlHttpObject(handler)
{ 
	var objXmlHttp=null

	if (navigator.userAgent.indexOf("Opera")>=0) {
		alert("Opera does not support AJAX-style javascript.") 
		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
	}
}

function sendMessage(getString, tLoc) {
	var url="ajaxBackend.php" + getString + "&loc=" + tLoc
	var xmlHttpObjectIndex = xmlHttp.length
	if (!tLoc) {
		xmlHttp[xmlHttpObjectIndex] = GetXmlHttpObject()
	}
	else {
		xmlHttp[xmlHttpObjectIndex] = GetXmlHttpObject(new Function("if (xmlHttp[" + xmlHttpObjectIndex + "].readyState==4 || xmlHttp[" + xmlHttpObjectIndex + "].readyState==\"complete\") { document.getElementById(\"" + tLoc + "\").innerHTML=xmlHttp[" + xmlHttpObjectIndex + "].responseText }"))
	}
	xmlHttp[xmlHttpObjectIndex].open("GET", url , true)
	xmlHttp[xmlHttpObjectIndex].send(null)
}