var ns4 = (navigator.appName == 'Netscape' && parseInt(navigator.appVersion) == 4);
var ns6 = (document.getElementById)? true:false;
var ie4 = (document.all)? true:false;

function getObj(id){
  if (ie4 || ns6){
    return ;
   }
  else if(ns4){
    return document.layers[id];
  }
}
function findobj(id){
  var obj;
  if (obj = document.getElementById(id)) {
  	return obj
  } else {
  	return 0
  }
}

var bg1 = '#e8e6e0';
var bg2 = '#ffffff';
var overclr = '#9c3';
var outclr = '#ccc';

function bgI(id,imj) {
   var obj = getObj(id);
   var img = getObj(imj);   
   obj.backgroundColor = bg2;
   img.borderColor = bg2;
}   
function bgO(id,imj) {
   var obj = getObj(id);
   var img = getObj(imj);   
   obj.backgroundColor = bg1;
   img.borderColor = overclr;
}