var agent=window.navigator.userAgent;
var agentType=(agent.indexOf('MSIE')>1)?'IE':'FF';
function switchTab(tabpage,tabid,contid)
{
  var oItem = document.getElementById(tabpage);
  var oItemLen = (agentType=='IE')?oItem.childNodes.length:parseInt(oItem.childNodes.length/2);
  for(var i=0;i<oItemLen;i++)
  {
    var x = (agentType=='IE')?oItem.childNodes[i]:oItem.childNodes[i*2+1];
    x.className = "";
    var y = x.getElementsByTagName('a');

  }

  document.getElementById(tabid).className = "Selected";
  var dvs=document.getElementById(contid).getElementsByTagName("div");
	
  for (var i=0;i<dvs.length;i++)
  {
    dvs[i].style.display=(dvs[i].id==('d'+tabid))?'block':'none';
  }
}