function  expan(e) {
  var subWin = window.open("images/china_dance_1010052a.jpg","def","height=600,width=800");
}

 

var newWindow = null;

function nuPic(num) {
  closeWindow();

  newWindow = open("shoCPic2.php?s=" + num,"myWindow","height=620,width=825,left=30,top=100");
 
  newWindow.focus();
}

function nuPic2(num) {
  closeWindow();

  newWindow = open("shoCPic2.php?s=" + num,"myWindow","height=825,width=620,left=30,top=100");
 
  newWindow.focus();
}


function closeWindow() {
  if (newWindow != null) {
    newWindow.close();
    newWindow = null;
  }
}