ns4 = document.layers;
ie4 = document.all;
nn6 = document.getElementById && !document.all; 

function phideObject(obj) {
  if (ns4) {  
     document.obj.visibility = "hide";	     
  }
  else if (ie4) {
   	document.all[obj].style.visibility = "hidden";	
  }
  else if (nn6) {
    document.getElementById(obj).style.visibility = "hidden";	   
  }
}

function pshowObject(e, obj) {
   
  if (ns4) {
  	     	document.obj.visibility = "show";
     		/*document.popup.left = e.pageX;
		    document.popup.top = e.pageY;*/
  }
  else if (ie4) {  	  	
	document.all[obj].style.visibility = "visible";		
  }
  else if (nn6) {    	
	document.getElementById(obj).style.visibility = "visible";		
  }
}