function selectTab(el,index,tabActiveClass,tabNormalClass){
if(el.className==tabActiveClass){
return;
}else{
var tabs = el.parentNode.childNodes;
var contents = el.parentNode.nextSibling.childNodes;
for(var i=0,j=tabs.length; i<j; i++){
tabs[i].className = tabNormalClass
contents[i].style.display = 'none'
}        
tabs[index].className = tabActiveClass;
contents[index].style.display = 'block';
}
}

function checkform()
{
	if (isLogin == '')
	{
		alert('如果您还不是巨人财经会员，请先注册成为巨人财经会员！');
                window.location.href='/member/register.php';
		return false;
	}
	if(!Common.isemail($F('email')))
	{
		alert('您的email地址非法，请重新填写！');
		$('email').focus();
		return false;
	}
}
function nTabs(thisObj,Num){
if(thisObj.className == "active")return;
var tabObj = thisObj.parentNode.id;
var tabList = document.getElementById(tabObj).getElementsByTagName("li");
for(i=0; i <tabList.length; i++)
{
  if (i == Num)
  {
   thisObj.className = "active"; 
      document.getElementById(tabObj+"_Content"+i).style.display = "block";
  }else{
   tabList[i].className = "normal"; 
   document.getElementById(tabObj+"_Content"+i).style.display = "none";
  }
} 
}