var g_sub_pages;

function init_subpages(){
    g_sub_pages = new Array();
}

function new_subpage(tag, parts){
    g_sub_pages[tag] = parts;

    for (i in parts){
        document.getElementById(parts[i]).style.display = "none"
    }
}

function load_subpage(tag, page){
	// hide all pages
	for (tag in g_sub_pages) {
		parts = g_sub_pages[tag]
		for (i in parts) {
			document.getElementById(parts[i]).style.display = "none"
		}
	}
	
	// show the one we want
    document.getElementById(page).style.display = "block"
}