// create ajax request //
function createRequestObject() {
	var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer") {
		ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else {
        ro = new XMLHttpRequest();
    }
    return ro;
}
var http = createRequestObject();

//send request based on incoming action & parameters
function sndReq(id, action) {
	http.open('get', id+'.htm'+action);
    http.onreadystatechange = handleResponse;
    http.send(null);
}

// update request on status
function handleResponse() {
	if(http.readyState == 4){
    	var response = http.responseText;

        if(response.indexOf('|' != -1)) {
		
		document.getElementById('rightColumn').innerHTML=response;
        }
    }
}


// toggleNav function
var lastLink='';
function navigationTab(id, action) {
	var o = document.getElementById(id);
	if (o.className == 'portal-nav-tab') {
		if (lastLink!=''){hide(lastLink);}
		show(id, action);
		lastLink=id;
	}
}
function show(id, action) {
	var o = document.getElementById(id);
	o.className = 'portal-nav-tab-active';
	//sndReq(id, action);
}
function hide(id) {
	var o = document.getElementById(id);
	o.className = 'portal-nav-tab';
}