function hideElement_(elmID)
{
	for(i = 0; i < document.all.tags( elmID ).length; i++ )
	{
		obj = document.all.tags( elmID )[i];
		if( !obj || !obj.offsetParent )
		{
			continue;
		}
		obj.style.visibility = "hidden";
	}
}
 
function showElement_(elmID)
{
	for( i = 0; i < document.all.tags(elmID).length; i++ )
	{
		obj = document.all.tags( elmID )[i];
		
		if( !obj || !obj.offsetParent )
		{
			continue;
		}
		obj.style.visibility = "";
	}
}
function showBox(name)
{
		
	hideElement_("SELECT");
	
	var _y=document.body.scrollTop;
	var _x=document.body.scrollLeft;
	document.getElementById(name).style.left=_x+200;
	document.getElementById(name).style.top=_y+100;
	document.getElementById(name).style.display='block';
	
}
function closeBox(name)
{
	showElement_("SELECT");
	document.getElementById(name).style.display='none';
}




function add_user(user_id)
{
		var uid=user_id;
		var user_value=document.form1.sendto.value;
		if(user_value=='')
		{
			
			document.form1.sendto.value=user_id;
			
		}else{
			
			var sss=user_value.indexOf(user_id);
			
			if (user_value.indexOf(user_id)==-1)
			{
				document.form1.sendto.value=user_value + "," + user_id;
			}
			else
			{
				alert('您已经选择了此收件人');	
			}
		}
		
	
}
function change(id,name,co){
  document.getElementById('searchtype').value = id;
  for(i=1;i<=co;i++){
   class_name=name+i;
   class_name2=name+"_"+i;
   if (id==i){
    document.getElementById(class_name).style.display="block";
    document.getElementById(class_name2).className=name+"_yes";
   }else{
    document.getElementById(class_name).style.display="none";
    document.getElementById(class_name2).className=name+"_no";
   }
  }
 }