var isDHTML  = 0;
var isID     = 0;
var isAll    = 0;
var isLayers = 0;
var isSafari=navigator.userAgent.indexOf("Safari")!=-1?true:false;
var isMSMAC=((navigator.userAgent.indexOf("MSIE")!=-1) && (navigator.userAgent.indexOf("Mac")!=-1))?true:false;
var isOpera=navigator.userAgent.indexOf("Opera")!=-1?true:false;


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 hide (objectID)
 {
//     alert ("hello");
     if (isID) { document.getElementById(objectID).style.display='none';}
     else if (isAll) { document.all[objectID].style.display='none';}
     else if (isLayers) { document.layers[objectID].display='none'; }
 }

function show (objectID)
 {
     if (isID) { document.getElementById(objectID).style.display='block';
                document.getElementById(objectID).style.visibility='visible';}
     else if (isAll) { document.all[objectID].style.display='block';}
     else if (isLayers) { document.layers[objectID].display='block'; }
 }

function hide2 (objectID)
 {
     if (isID) { document.getElementById(objectID).style.visibility='hidden';}
     else if (isAll) { document.all[objectID].style.visibility='hidden';}
     else if (isLayers) { document.layers[objectID].visibility='hidden'; }
 }

function show2 (objectID)
 {
     if (isID) { document.getElementById(objectID).style.visibility='visible';}
     else if (isAll) { document.all[objectID].style.visibility='visible';}
     else if (isLayers) { document.layers[objectID].visibility='show'; }
 }