function empty (value) {
  var n = value.length;
  if (n>0) {
    return (false);
  } else {
    return (true);
  }
}
function iif(jexpression,jreturntrue,jreturnfalse){
  if (jexpression==0) {
    return jreturnfalse;
  } else {
    return jreturntrue;
  }
}
function gourl(curl) {
  if (curl!='') {
    location.href = curl;
  }
}
function list_main(n) {
  var o1 = document.getElementById('list_main01');
  var o2 = document.getElementById('list_main02');
  var img1 = document.getElementById('newlist1');
  var img2 = document.getElementById('newlist2');
  if (n == 1) {
    o2.style.display = "none";
    o1.style.display = "block";
    img2.src="images/newlist02.gif";
    img1.src="images/newlist11.gif";
  } else {
    o1.style.display = "none";
    o2.style.display = "block";
    img1.src="images/newlist01.gif";
    img2.src="images/newlist12.gif";
  }
}