function appendTag(id, tag) {
   var obj = document.getElementById(id);
   if (obj.value == '')
     obj.value = tag;
   else
     obj.value = obj.value + "," + tag;
}

function copy_to_clipborad(id)
{
   var obj = document.getElementById(id);
   obj.select();
   if (window.clipboardData)
   {
     window.clipboardData.setData("Text", obj.value);
   }
   else if (window.netscape)
   {
     netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
     var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
     if (!clip) return;
     var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
     if (!trans) return;
     trans.addDataFlavor('text/unicode');
     var str = new Object();
     var len = new Object();
     var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
     var copytext=meintext;
     str.data=copytext;
     trans.setTransferData("text/unicode",str,copytext.length*2);
     var clipid=Components.interfaces.nsIClipboard;
     if (!clip) return;
       clip.setData(trans,null,clipid.kGlobalClipboard);
   }
}

function switchPassword(){
    var pwd = document.getElementById("pwd");
    if(pwd.style.display =="block"){
        pwd.style.display = "none" ;
	}else{
        pwd.style.display = "block" ;
	}
}

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}