function isSupported(){
  if(document.all || document.getElementByID){
  	return true;
  }
  return false;
}


function browserCheck(){
	var ns4 = document.layers
	var ie4 = (document.all && !document.getElementByID)
	var ie5 = (document.all && document.getElementByID)
	var ie6 = (document.all && document.getElementByID)
	var ns6 = (!document.all && document.getElementByID)
	var ns7 = (!document.all && document.getElementByID)
	//if (navigator.appName=='Netscape'){supported=false} 
	if (ns4)
	{
	   return false;
	}
	return true
	
}
	
var OpenCensus = "";
var ClosedCensus = "";


if(document.images){
	OpenCensus = new Image()
	ClosedCensus = new Image()
	OpenCensus.src = "/images/buttons/closeinfo.gif"
	ClosedCensus.src = "/images/buttons/moreinfo.gif"
}


function showhide(what,what2){
   if(browserCheck()){
        var currentdiv, currentimage;
        
        if(document.getElementById){
           currentdiv = document.getElementById(what);
           currentimage = document.getElementById(what2);
        }
        

	if (currentdiv.style.display=='none'){
		currentdiv.style.display='';
		currentimage.src=OpenCensus.src
	}
	else{
		currentdiv.style.display='none'
		currentimage.src=ClosedCensus.src
	}
   }else{
        alert('This link does not work in your browser.\nPlease click on the \'Browse Categories\' link above.');
   }
}