dom = (document.getElementById)? true : false;
nn4 = (document.layers)? true : false;
ie4 = (!dom && document.all)? true : false;

var maxmenu = 5;
var start = 0;
var activmenu = 0;
var cur = 0;
var tim;
var overactiv = 0;
var overcolor = '#FFFFFF';
var outcolor = '#FFFFFF';

//horizontal popup
function showmenuvert(el,pos){ 
	var cx;
	if (dom)
		cx=document.body.offsetWidth;
	if (nn4)
  		cx=window.innerWidth;
	cx=cx / 2 - pos
 	if (dom) {document.getElementById(el).style.visibility = "visible";document.getElementById(el).style.left=cx;}
 	else if (ie4) {document.all[el].style.visibility = "visible";document.all[el].style.left=cx;}
 	else if (nn4) {document.layers[el].visibility = "show";document.layers[el].left=cx}
 	activmenu = 1;
}

function activvert(el,pos){
	if (activmenu == 1){
		if (el != cur) {hidemenu(cur); showmenuvert(el,pos); cur = el; }
	} 
   	else {showmenuvert(el.pos); cur = el; }
}

//verticalpopup
function showmenu(el){ 
	var cx;
	if (dom)
	  cx=document.body.offsetWidth;
	if (nn4)
	  cx=window.innerWidth;
	cx=175;
	 if (dom) {document.getElementById(el).style.visibility = "visible";document.getElementById(el).style.left=cx;}
	 else if (ie4) {document.all[el].style.visibility = "visible";document.all[el].style.left=cx;}
	 else if (nn4) {document.layers[el].visibility = "show";document.layers[el].left=cx}
	 activmenu = 1;
}

function hidemenu(el){
	 if (dom) document.getElementById(el).style.visibility = "hidden";
	 else if (ie4) document.all[el].style.visibility = "hidden";
	 else if (nn4) document.layers[el].visibility = "hide";
	 activmenu = 0;
}

function hideall(){
	 for (i=1; i<=maxmenu; i++){
		if (dom) document.getElementById('menu'+i).style.visibility = "hidden";
	 	else if (ie4) document.all['menu'+i].style.visibility = "hidden";
	 	else if (nn4) document.layers['menu'+i].visibility = "hide";
	 }
	 activmenu = 0;
}

function noactiv(){
	if (start != 0) hidemenu(cur)
}

function activ(el){
	if (activmenu == 1) {
		if (el != cur) {hidemenu(cur); showmenu(el); cur = el; }
	} 
   	else {showmenu(el); cur = el; }
}

function ClickActiv(){
	if (activmenu == 1) hidemenu(cur);
	else showmenu(cur); 
}

function timeactiv(){
	 overactiv=0;
	 tim=setTimeout('tactiv()','800'); 
}

function tactiv(){
	if (overactiv == 0 && activmenu == 1) hidemenu(cur); 
}

function timedisable(){
	if (start != 0){
		clearTimeout(tim);  overactiv=1
	}else start = 1;
}

function bgLighting (div,optColor){
        if (optColor == 'over') {
	        if (dom) document.getElementById(div).style.backgroundColor = overcolor;
	        if(ie4) document.all[div].style.backgroundColor = overcolor;
	        if(nn4) document.layers[div].bgColor = overcolor;
	}else {
	        if (dom) document.getElementById(div).style.backgroundColor = outcolor;
	        if(ie4) document.all[div].style.backgroundColor = outcolor;
	        if(nn4) document.layers[div].bgColor = outcolor;
	}
}

var  status1 = 1;

function SHblock(item){
	if (item == 'infoblock1') {block = status1}
	if (block == 1){
	  if (dom) document.getElementById(item).style.display = 'none';
	  else if (ie4) document.all[item].style.display = 'none';  
	  block = 0;
	}else{
	  if (dom) document.getElementById(item).style.display = 'block';
	  else if (ie4) document.all[item].style.display = 'block';
	  block = 1;
	}
	if (item == 'infoblock1') {status1 = block}
}