var isLayers, isAll, isID = 0;
if (document.getElementById) isID = 1
else if (document.all) isAll = 1 
else { browserVersion = parseInt(navigator.appVersion);
       if (navigator.appName.indexOf('Netscape') != -1 && browserVersion == 4) isLayers=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]);
      }
 }