function toggle(obj){
      var objID = document.getElementById("obj"+obj);
		
	  var p1 = document.getElementById("open"+obj).style;
		var p2 = document.getElementById("close"+obj).style;
            objID.style.display = (objID.style.display == "none")?"":"none";
			p2.display = (!p2.display) ? 'none' : '';
			p1.display=(p1.display) ? '' : 'none';
			
}