


<!--
if (document.layers)
{var browser="NS4.x";
var lvar1="layers";
var lvar2="";
var lvar3="show";
var lvar4="hide";}

if (document.all)
{var browser="IE4.x";
var lvar1="getElementById(";
var lvar2=").style";
var lvar3="visible";
var lvar4="hidden";}

if (document.getElementById)
{var browser="IE6.x & NS6.x";
var lvar1="getElementById(";
var lvar2=").style";
var lvar3="visible";
var lvar4="hidden";}

var old;
 var memold;
 var subold;
 if(document.layers)
 {
  window.captureEvents(Event.MOUSEDOWN);
  window.onmousedown=do_out;
 } else
 {
document.onmouseup=do_out;
}
function show_layer(x)
{
eval("document."+lvar1+"[x]"+lvar2+".visibility='"+lvar3+"';");

}
function hide_layer(x)
{
eval("document."+lvar1+"[x]"+lvar2+".visibility='"+lvar4+"';");  
}
function do_menu(x)
{
        if(!old)
                old=memold;
        if(old!=x)
        {
                show_layer(x);
                old=x;
        } else
                old="";
}
function do_check(x)
{
        if(old && old!=x)
        {
                hide_layer(old);
                show_layer(x);
                old=x;
        }
        do_submenu();
}
function do_out()
{
        if(old)
                hide_layer(old);
        memold=old; old="";
        do_submenu();
}
function do_submenu(x)
{
        if(subold)
        {
                hide_layer(subold);
                subold="";
        }
        if(x)
        {
                show_layer(x);
                subold=x;
        }
}
// -->