//<![CDATA[

function chat() {
window.open('http://www.chinaleptin.com/livechat/hikehu.asp?u=admin','admin','top=0,left=100,width=620,height=477,scrollbars=no,resizable=no,status=yes,z-look=yes,alwaysRaised=yes,location=no,depended=no,center:yes')
}

function SelectClass(num){
   for (i=1; i<=7; i++)
   {
			if (i!=num) //当I!=num时,全部赋值为none,隐藏掉,
			{
				document.all["sub"+i].style.display="none";
				document.getElementById("ssub"+i).className="sub";
			}
			if (i==num)//当I=num时应根据原样式,单独进行处理
			{
  				if (document.getElementById("sub"+i).style.display == "none") //当为隐藏状态时打开
				{
					document.getElementById("sub"+i).style.display="block";//显示子菜单
					document.getElementById("ssub"+i).className="sub_s";//样式变为选中状态
				}
				else //当为打开状态时隐藏
				{
					document.getElementById("sub"+i).style.display="none"; //不显示子菜单
					document.getElementById("ssub"+i).className="sub";//样式变为选中状态
				}
			 }
    }
}

//]]>