/*
=================
*** NAVI LEFT ***
=================
*/

function chgImg(newImg,name){
	if (document.images){
		document [name].src = newImg;
		}
	}


/*
================
*** SUBMENUE ***
================
*/

var isDHTML = 0;
var isID = 0;
var isAll = 0;
var isLayers = 0;

if (document.getElementById){
   isID = 1;
   isDHTML = 1;}
else{
     if(document.all){
          isAll = 1;
          isDHTML = 1;}
     else{
          browserVersion = parseInt(navigator.appVersion);
     if((navigator.appName.indexOf('Netscape')!= -1) && (browserVersion==4)){
           isLayers = 1;
           isDHTML = 1;}
}}

function findDOM(objectID,withStyle){
     if(withStyle==1){
           if(isID){
              return(document.getElementById(objectID).style);}
              else{
                   if(isAll){
                      return(document.all[objectID].style);}
              else{
                   if(isLayers){
                      return(document.layers[objectID]);}
              };}
     }
     else{
          if(isID){
             return(document.getElementById(objectID));}
     else{
          if(isAll){
             return(document.all[objectID]);}
     else{
          if(isLayers){
             return(document.layers[objectID]);}
          };
     }
}}



function setVisibility(objectID,state){
	var dom = findDOM(objectID,1);
	dom.visibility = state;
	}

function toggleVisibility(objectID){	
	var dom = findDOM(objectID,1);
	state = dom.visibility;
	if(state == 'hidden' || state == 'hide'){
		dom.visibility = 'visible';
		}
	else{
		if(state == 'visible' || state == 'show'){
			dom.visibility = 'hidden'; 
			}
		else{
			dom.visibilitiy = 'visible';
			}
		}
}