// JavaScript Document
function show_div (target){
		hide_div('trans_list');hide_div('log_iso_list');

	var span_array=document.getElementsByTagName("span");
	
	for (var index=0; index<span_array.length; index++)	{
		
		span_array[index].style.display="none";
	}
		 
	
	
	var target=document.getElementById(target);
	
	target.style.display="block";
}

function hide_div (target){
	var target=document.getElementById(target);
	target.style.display="none";

	if(document.getElementById('trans_list').style.display=="block"){hide_div('trans_list');}
	if(document.getElementById('log_iso_list').style.display=="block"){hide_div('log_iso_list');}
}

function show_list (list_name){


	
		var aero_array=new Array("rolls_list", "trans_list", "nato_list", "easa_list", "iso_list", "cont_list", "ins_list");
		var lafa_array=new Array("faa_list", "laf_easa_list", "laf_rolls_list");
		var distrib_array=new Array("dis_trans_list", "dis_iso_list", "dis_cont_list");	
		var plat_array=new Array("log_iso_list", "chc_iso_list", "plat_ins_list", "plat_cont_list");
		var survey_array=new Array ("survey_list");
		
		
		var uber_array=new Array(aero_array, lafa_array, distrib_array, plat_array);
	
		
	
	for (var index=0; index<uber_array.length; index++){
		for (var inner=0; inner<uber_array[index].length; inner++){
		
			document.getElementById(uber_array[index][inner]).style.display="none";
		}
		
	}
	    document.getElementById(list_name).style.display="block";
		
	
}