function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function YY_showHideLayers(L2show, L2hide) { //v3.01
//copyright (c)1998-2000 Yaromat.com
  if (document.layers){ //ns
    for (i=0; i<(document.layers.length); i++){
      if (document.layers[i].name.search(L2hide) != -1){document.layers[i].visibility = 'hide';}
      if (document.layers[i].name.search(L2show) != -1){document.layers[i].visibility = 'show';}
    }
  }else
  if (document.getElementById){ //mz
    var yydiv = document.getElementsByTagName("DIV");
    for (i=0; i<(yydiv.length); i++){
      if (yydiv[i]) {
      	var yydivname = yydiv[i].id;
      	 // alert (yydivname);
      } else {
      	var yydivname = '';
      }
      if (yydivname.search(L2hide) != -1) { 
      	 // alert (yydivname+': hidden');
      	document.getElementById(yydivname).style.visibility = 'hidden';
      }
      if (yydivname.search(L2show) != -1) { 
      	 // alert (yydivname+': visible');
      	document.getElementById(yydivname).style.visibility = 'visible';
      }
    }

  }else
  if (document.all != null){ //ie
    var yydiv = document.all.tags("DIV");
    
    for (i=0; i<(yydiv.length); i++){
      if (yydiv[i]) {
      	var yydivname = yydiv[i].id;
      	alert (yydivname);
      } 
      else {
      	var yydivname = '';
      }
      if (yydivname.search(L2hide) != -1) {
      	document.all[yydivname].style.visibility = 'hidden';
      	// alert (yydivname+': hidden');
      }
      if (yydivname.search(L2show) != -1) {
      	document.all[yydivname].style.visibility = 'visible';
      	// alert (yydivname+': visible');
      }  
    }
  }

}