showmolddialog 代码 and window.open()

  function OpenPopupWindow(strOpen, width, height)
    {   
        window.showModalDialog(strOpen, this, 'dialogHeight:'+height+'px;dialogWidth:'+width+'px;Status:no;Toolbars:no;Scroll:yes;Help:no;Center:yes;');
    }
   ////////////////////////////////////////////////////////////

function openwindow(url,width,height)
{
 xposition=0; yposition=0;
 if ((parseInt(navigator.appVersion) >= 4 ))
 {
 xposition = (screen.width - width) / 2;
 yposition = (screen.height - height-50) / 2;
 }
 theproperty= "width=" + width + ","
 + "height=" + height + ","
 + "location=0,"
 + "menubar=0,"
 + "resizable=0,"
 + "scrollbars=0,"
 + "status=0,"
 + "titlebar=0,"
 + "toolbar=0,"
 + "hotkeys=0,"
 + "screenx=" + xposition + ","
 + "screeny=" + yposition + ","
 + "left=" + xposition + "," //IE
 + "top=" + yposition; //IE

  var  win=window.open(url,"",theproperty);
  win.moveTo(xposition,0);
}