function show(ii){

		if (document.getElementById) {
	    document.getElementById(ii).style.visibility = 'visible';
	    document.getElementById(ii).style.overflow = 'visible';
	  }
	  else if (document.layers && document.layers[ii]) {
	    document.layers[ii].visibility = 'visible';
	    document.layers[ii].overflow = 'visible';
	  }
	  else if (document.all) {
	    document.all[ii].style.visibility = 'visible';
	    document.all[ii].style.overflow = 'visible';
	  }

}

function hide(ii){
	
		if (document.getElementById) {
	    document.getElementById(ii).style.visibility = 'hidden';
	  }
	  else if (document.layers && document.layers[ii]) {
	    document.layers[ii].visibility = 'hidden';
	  }
	  else if (document.all) {
	    document.all[ii].style.visibility = 'hidden';
	  }

	return true;
}

function checkEenBox(n) {
	var ch = new getObj('update_'+n);
	var sl = new getObj('upd_'+n);
	var dv = new getObj('dv_'+n);
	
	if (sl.obj.selectedIndex == 0) {
		ch.obj.checked = false;
		dv.obj.className = 'ebl';
	}
	else {
		ch.obj.checked = true;
		dv.obj.className = 'eblS';
	}


	return true;
}

function getObj(name)
{
  if (document.getElementById)
  {
  	this.obj = document.getElementById(name);
  }
  else if (document.all)
  {
	this.obj = document.all[name];
  }
  else if (document.layers)
  {
   	this.obj = document.layers[name];
  }
}