function show(id) {
  document.getElementById(id).style.display='block';
}

function hide(id) {
  document.getElementById(id).style.display='none';
}

function warn(url) {

  var agree=confirm("Are you sure you wish to delete?");
  if (agree)
	  location.href= url;
  else
	  return true ;

}

function pop(url,w,h,name) {
  win = window.open(url,
		  name,
		  "resizable=no,menubar=no,location=no,toolbar=no,left=150,top=100,width="+w+",height="+h+",scrollbars=no");
  win.focus();
}