var max_upload_count = 5 ;
 function titleFocus(i){
 
     var obj = document.getElementById("displayname_"+i) ;
     obj.focus() ;
 }
 
 /*
    上传图片
 */
 function showPic(i){
     var obj = document.getElementById("file_"+i) ;
     var url = obj.value ;
     var imgObj = document.getElementById("image_"+i) ;
     var img_tableObj = document.getElementById("image_table_"+i) ;
      imgObj.src=url; 
     img_tableObj.style.display="" ;
     imgObj.style.display="" ;
 }
 /*
    添加上传信息
 */
 function write_upload(i){
     var total_count = document.getElementById("totalcount") ;
     var count = Math.abs(total_count.value) ;
     if(i<count)
          return ;
     if(i >=max_upload_count)
        return ;
	 var obj = document.getElementById("SendPic"+(i+1));
	 obj.style.display="" ;
     total_count.value = count+1 ;
     
 }
 
/*响应 radio选中情况*/
function check_radio(obj){
    
    if(obj.value==2){
        document.Form1.target_folder.disabled = true ;
        folder_new.style.display="" ;
        folder_info.style.display= "none" ;          
    }else if(obj.value ==1){
		if(document.Form1.target_folder.value != "")
		{
			if(obj.checked){
				document.Form1.target_folder.disabled = false ;
				folder_new.style.display="none" ;
				check_folder(document.Form1.target_folder);
			}
        }
        else
        {
			alert("您还没有创建子相册！");
			document.Form1.Radio1.checked=true
        }       
    }    
}
/*响应 select 选中情况*/
function check_folder(sel){
  var obj = document.Form1 ;
  if(!isRootSel(sel) ){
      folder_new.style.display="none" ;
      obj.folder_name.value="" ;
      obj.folder_description.value = "" ;   
  }
  for(var i =0 ;i<sel.options.length;i++){
      if(sel.options[i].selected){
          showFolderInfo(i) ;
          break ;
      }          
  }    
}

/**
 * 显示 相册基本信息
*/
function showFolderInfo(i){
 var name = folder_names[i] ;
 var desc = folder_descs[i] ;
 
 var result = '<table width="100%" border="0" cellspacing="0" cellpadding="0" style="table-layout:fixed; word-break:break-all">'
				+' <tr>'
				+'<td > '
				+'<table width="100%" border="0" cellspacing="0" cellpadding="0" id="table5">'
				+'  <tr>'
				+'<td height="1" bgcolor="#D0D0CE"> </td>'
				+'  </tr>'
				+'  <tr>'
				+'<td height="1" bgcolor="#FEFEFC"> </td>'
				+'  </tr>'
				+'</table>'
				+'<table width="78%" border="0" cellspacing="0" cellpadding="0" >'
				+'  <tr> '
				+'<td width="20%" height="30"  class="a2" align="right">相册名字：</td>'
				+'<td class="a2">'+name+'</td>'
				+'  </tr>'
				+'  <tr> '
				+'<td width="20%" height="30"  valign="top" class="a2" align="right">相册描述： '
				+'</td>'
				+'<td class="a2">'+desc+'</td>'
				+'  </tr>'
				+'</table>'
				+' </td>'
				+'  </tr>'
				+'</table>' ;
   folder_info.innerHTML = result ;
   folder_info.style.display= "" ;

}

/*判断根目录是否被选中*/
function isRootSel(sel){
    if(sel.options[0].selected)
         return true ;
    return false;

}