var active = null;
//
getElement=function(id){	
	if (!document.getElementById){
	 return;
	}
	//
	if (document.getElementById){
		// this is the way the standards work
		var el = document.getElementById(id);
	}else if (document.all){
		// this is the way old msie versions work
		var  el = document.all[id];
	}else if (document.layers){
		// this is the way nn4 works
		var el = document.layers[id];
	}
	return el;
}
//
toggleDisplay=function(el){
	el.style.display = el.style.display ? "" : "block";
}
//
switchContent=function(id){
	//turn off last active
	if(active){
		toggleDisplay(active);
	}
	active=getElement(id);
	toggleDisplay(active);
	var img=(getElement('headerimg'))
	img.src="images/header-"+id+".jpg"
}

writeToolbar=function(src){
	(getElement('toolbar')).innerHTML='<iframe src="'+src+'" name="toolbarframe" height="30" width="100%" frameborder="0" scrolling="no" marginheight="0" marginwidth="0"></iframe>';
}