function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

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() { //v6.0
  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; }
}

// browser detection
var uaVer = parseInt(navigator.appVersion);
var NS6 = (navigator.appName == "Netscape" && uaVer >= 5);
var NS4 = (navigator.appName == "Netscape" && uaVer >= 4 && uaVer < 5);
// menu init
var inMenu = 0;
var curLayer = "";
var curMenu = "";
var menuTimeout = null;


// mouseover image functions for menu item images
function menuItemOn(layerName) {
    clearTimeout(menuTimeout);
    inMenu = 1;
}

function menuItemOff(layerName) {
    inMenu = 0;
    menuTimeout = setTimeout("hideMenu(curLayer)", 50);
}

// show menu
function showMenu(layerName,menuName) {
	if (menuTimeout != null) {
		clearTimeout(menuTimeout);
		hideMenu(curLayer);
	}

	curMenu = menuName;

	if (navigator.appName == "Netscape" && !document.getElementById) { eval('document.layers.'+layerName+'.visibility = "show"');
	} else if (document.getElementById) { eval('document.getElementById("'+layerName+'").style.visibility = "visible"');
	} else { eval('document.all["'+layerName+'"].style.visibility = "visible"'); }

	curLayer = layerName;
}

// hide menu
function hideMenu(layerName) {
	if (inMenu == 0) {
		if (navigator.appName == "Netscape" && !document.getElementById) { eval('document.layers.'+layerName+'.visibility = "hide"');
		} else if (document.getElementById) { eval('document.getElementById("'+layerName+'").style.visibility = "hidden"');
		} else { eval('document.all["'+layerName+'"].style.visibility = "hidden"'); }
    }
}

// mouse out timer
function setTimer() {
    // time after mouse moves away from menu heading before menu is hidden
	menuTimeout = setTimeout("timeUp()",150);
}

// check menu status and see if we should hide the last menu
function timeUp(child) {
    if (inMenu == 0) {
        hideMenu(curLayer);
    }
}