function changepart(m,n){
  if(n%2==0)
 	 {  
 	 	 document.getElementById("dd6_"+m).className="title6_2"; 	 	 
 	 	 document.getElementById('dd_'+n).style.display='';
 	 	 document.getElementById('dd_'+(n-1)).style.display='none'
 	 }
 	 else 
 	 {   
 	 	 document.getElementById("dd6_"+m).className="title6_1"; 	 	 
 	 	 document.getElementById('dd_'+n).style.display='';
 	 	 document.getElementById('dd_'+(n+1)).style.display='none'
 	 }	 
 
}

function formMsg_onsubmit(form)
{
    if(form.content.value.Trim()=="")
	{
	    alert("ÇëÌîдÄúÒªÁôϵĻ°");
		return false;
	}
	if(form.userName.value.Trim()=="")
	{
	   //orm.userName.value="Anoymous";
	}
	return true;
}