// browsercheck
ns4 = (document.layers)? true:false;
ie4 = (document.all)? true:false;
dom = (ns4|ie4)? false:true;
ns6 = (window.innerWidth)? true:false;

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; }
}

function showNav(id,nav){
  
  navParent = nav;
  hideNav();
  navShow = id;
  
  MM_showHideLayers(id,'','show');
  //if(id == 'navtop1sub'){
  //  MM_showHideLayers('searchtext','','hide');
  //}
  if(navVisible[navVisible.length-1] != id){
  	navVisible.push(id);
  }
  //alert(navVisible[navVisible.length-1]);
  //titleTmp = '';
  //for(i=0; i<navVisible.length; i++){
  //	titleTmp += navVisible[i]+',';
  //}
  //document.title = "navArray:"+titleTmp;
  
  navSelected = nav;
  if(nav != 'nAll'){
    
    if (document.getElementById) {
      //selected = document.getElementById(nav+'a');
    } else {
      //selected = document.all[nav+'a'];
    }
	//navUnselect = selected.className;
	//selected.className = 'hover';
	
	//document.getElementById(nav).style.zIndex = -1;
  }
}
function hideNav(){
  if(navSelected != ''){
    
	if(navSelected != 'nAll'){
		if (document.getElementById) {
    		//selected = document.getElementById(navSelected+'a');
    	} else {
    		//selected = document.all[navSelected+'a'];
    	}
	//selected.className = 'link';
	}
	
	
	
	for(i=navVisible.length-1; i>=0; i--){
    	navHide = navVisible[i];	
		//alert(navHide);
		//document.title = "navHide:"+navHide;
		
		if((navHide != navParent) || navParent == 'nAll'){
			navVisible.pop();
			MM_showHideLayers(navHide,'','hide');
		}else{
			break;
		}
  	}
	//MM_showHideLayers(navParent,'','show');
  
  }
  //if(selected.indexOf('n2')<0){
  //  MM_showHideLayers(navShow,'','hide');
  //}
  
  //MM_showHideLayers('searchtext','','show');
  //MM_swapImgRestore();
  clearTime();
}
function clearTime() {
	if(tTime) clearTimeout(tTime);
	t2 = -1;
}
var n;
function outLayer(t,n){
	if(!ns4 || !n){
		t2 = t;
		if(t2>0){
			t2--;
			tTime = setTimeout("outLayer(t2)",200);
		}else{
			navParent = 'nAll';
			hideNav();
			clearTime();
		}
	}
}

var nav = '';
t2 = -1;
tTime = 0;

navVisible = new Array();

navShow = '';
navShowTmp = '';
navHide = '';
selected = '';

navSelected = '';
navUnselect = '';

//