// Determine browser type.
var isIE = (navigator.appName == "Microsoft Internet Explorer") ? 1 : 0;
var isNS = (navigator.appName == "Netscape") ? 1 : 0;
var isNS4 = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) < 5);

// Check to make sure the mouse doesn't move off the page
if (isIE)
	document.onmouseout = offPage;
// Edited to work with Netscape 4.x, this also works on opera
if (isNS && !isNS4)
	document.addEventListener("mouseout", offPage, true);

// Should the mouse go off the document window hide all menus
function offPage(event){
	var offScreen;
	if (isIE) offScreen = (window.event.clientY < 5) ? 1 : 0;
	if (isNS) offScreen = (event.pageY < 5) ? 1 : 0;
	if (offScreen) hideMenus();
}



function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
// -->

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

function showMenu(mnu) {
	hideMenus();

	// Make the background layer visible for catching the mouse as it leaves the menu
	var currentElement = document.getElementById("clearAll");
	currentElement.style.visibility = "visible";

	MM_showHideLayers(mnu,'','show');
}

function hideMenus() {
  MM_showHideLayers('menu1_1','','hide');
  MM_showHideLayers('menu2_1','','hide');
  MM_showHideLayers('menu3_1','','hide');
  MM_showHideLayers('menu4_1','','hide');
  MM_showHideLayers('menu5_1','','hide');
  MM_showHideLayers('menu6_1','','hide');
  MM_showHideLayers('menu7_1','','hide');

  MM_showHideLayers('bmenu1_1','','hide');
  MM_showHideLayers('bmenu2_1','','hide');
  MM_showHideLayers('bmenu3_1','','hide');
  MM_showHideLayers('bmenu4_1','','hide');
  MM_showHideLayers('bmenu5_1','','hide');
  MM_showHideLayers('bmenu6_1','','hide');
  MM_showHideLayers('bmenu7_1','','hide');
}