一、打开新页面，原页面关闭，且不弹出确认提示框
<a href="javascript:op();">打开</a>
<SCRIPT LANGUAGE="JavaScript">
<!--
var a;
function op(){
    a=window.open("about:blank","_top");
    a.document.write("<a href=\"javascript:self.opener=null;self.close();\">关闭</a>");
}
//-->
</SCRIPT>

二、只允许open一次
var newwindow = '';

    function popitup(url,target) {
     if (!newwindow.closed && newwindow.location) {
       newwindow.location.href = url;
     }
     else {
       newwindow=window.open(url,target);
      if (!newwindow.opener) newwindow.opener = self;
     }
     if (window.focus) {newwindow.focus()}
    return false;
     }

三、直接关闭IE，不弹出确认提示
<SCRIPT LANGUAGE="JavaScript">
<!--
function closeWin(){
    window.open("","_self");
   top.opener=null;
    top.close();
}
//-->
</SCRIPT>