var def_tab='buss'
var current_tab=''
function $(e){
	return document.getElementById(e)
}
function showtab(x){
	if(def_tab==x)
		return false;
	if(def_tab!=""){
		$("atab_"+def_tab).style.background="none"
		$("stab_" + def_tab).style.background = "none"
		$("tab_"+def_tab).style.display = "none"
		$("tab_"+def_tab).style.margin = "0px 0px 0px 0px"
	}
	$("atab_"+x).style.textDecoration="none"
	$("atab_"+x).style.background="url(images/bgr-transtab-left.png) no-repeat"
	$("stab_" + x).style.background = "url(images/bgr-transtab-right.png) no-repeat right top"
	$("tab_"+x).style.display = "block"
	$("tab_" + x).style.margin = "0px 0px 0px 0px"	
	def_tab=x
	return false
}

function init() {
    $("tab_tog").style.display = "none";
    $("tab_bat").style.display = "none";
    $("tab_bil").style.display = "none";
    $("tab_fly").style.display = "none";
}

window.onload = init