function showsub(tname,btnid,tabnumber)
{
	for (i = 0;i<tabnumber;i++)
	{
		document.getElementById(tname+"_subdiv"+i).style.display = "none";
	}
	document.getElementById(tname+"_subdiv"+btnid).style.display ="block";
}

function menuclear(text1)
{ 
   if (event.toElement.tagName!="a" && event.toElement.tagName!="font" && event.toElement.tagName!="div")
   {
      text1.style.display='none';         
   }
}


function advice()
{
    if(document.getElementById("ctl00_ContentPlaceHolder1_txtContent").value=="")
    {
         alert("请输入内容");
         document.getElementById("ctl00_ContentPlaceHolder1_txtContent").focus();
         return false;
    }
    if(document.getElementById("ctl00_ContentPlaceHolder1_txtName").value=="")
    {
         alert("请输入您的姓名");
         document.getElementById("ctl00_ContentPlaceHolder1_txtName").focus();
         return false;
    }
}