// JavaScript Document

var  docObj;
var  docObjEnd;
var  styleObj;
	
if (document.layers){
  	docObj =  'document.';
  	docObjEnd = '';
  	styleObj =''
}else if (document.getElementById){
  	docObj = "document.getElementById('";
  	docObjEnd = "')";
  	styleObj = ".style";
} else if (document.all) {
  	docObj =  'document.all.';
  	docObjEnd = '';
  	styleObj ='.style';
}

function objectStyle( divName){
  	return(eval (docObj  + divName + docObjEnd  + styleObj));
}

function objectClose(objName){
	if (object(objName)){
		object(objName).style.visibility = 'hidden';
	}
}

function objectOpen(objName){
	if (object(objName)){
		object(objName).style.visibility = 'visible';
	}
}
function object(divName){
  	return(eval (docObj  + divName + docObjEnd  ));
}

function closeAll(){
	objectClose("Pop1");
	objectClose("Pop2");
	objectClose("Pop3");
}


function openLayer(layerName){
	closeAll()
	objectOpen(layerName)
}