function search_from(sea)
	{
	 if ( sea==1)
		{
			search.action='/game/article/class.php?field=title';			
		}
		else if ( sea==0)
		{
			search.action='/article/search.php?field=title';			
		}   
    }		
function search_onsubmit(){
if(document.search.keyword.value=="")
   {
      alert("请输入要查询的内容！")
      document.search.keyword.focus()
      return false
    }

else
   {
     return true
    }
}