// navigation roll overs
function menu_nav(){
	menu_ar = new Array();
	for (var i=0;i<arguments.length;i++){
		menu_ar[arguments[i]] = new Array();
		menu_ar[arguments[i]]['off'] = new Image();
		menu_ar[arguments[i]]['over'] = new Image();
		menu_ar[arguments[i]]['off'].src = "uploads/images/structure/nav-"+arguments[i]+".gif";
		menu_ar[arguments[i]]['over'].src = "uploads/images/structure/nav-"+arguments[i]+"-on.gif";
	}
}

menu_nav("name");

function menu_over(which){
	document.images[which].src = menu_ar[which]['over'].src;
}

function menu_out(which){
	document.images[which].src = menu_ar[which]['off'].src;
}