function $() {
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);
    if (arguments.length == 1) 
      return element;
    elements.push(element);
  }
  return elements;
}


var emptyCol="",overCol="#f1f1f1",checkedCol="#F4FFF4";
function getAbsoluteLeft( ob ){
 if(!ob){return null;}
   var obj = ob;
   var objLeft = obj .offsetLeft;
   while( obj != null && obj .offsetParent != null && obj .offsetParent.tagName != "BODY" ){
     objLeft += obj .offsetParent.offsetLeft;
     obj = obj .offsetParent;
   }
 return objLeft ;
}

// 获得绝对的顶部位置
function getAbsoluteTop( ob ){
 if(!ob){return null;}
 var obj = ob;
 var objTop = obj .offsetTop;
 while( obj != null && obj .offsetParent != null && obj .offsetParent.tagName != "BODY" ){
   objTop += obj .offsetParent.offsetTop;
   obj = obj .offsetParent;
 }
 return objTop ;
}
String.prototype.trim = function()
{ return this.replace(/(^\s*)|(\s*$)/g, "");}

function isExist(child,obj){    
    //对象具有的子元素

   for(var i=0;i<obj.elements.length;i++){
    if(obj.elements[i].tagName.toLowerCase()=="input" && obj.elements[i].type=="checkbox"){
       //alert(obj.elements[i].value.trim() +" | "+ child.trim());
       if(obj.elements[i].value.trim() == child.trim() )return true;
    }
   }
   return false;
}


function countLength(obj){
 if(obj==null)return;
 var dLen = 0,sLen = 0;
 for(i=0; i< obj.length; i++ ){
   if(obj.charCodeAt(i) > "0" && obj.charCodeAt(i) < "128")
     sLen+=1;
    else
      dLen+=2;
 }
  totalLen = sLen+dLen;
  return totalLen;
}
var strAll=unescape("%u5168%u9009");
var canAll=unescape("%u53D6%u6D88");

function addSite(obj){
    var oForm = null;
    oForm = document.getElementsByTagName("form")[0];
    oForm.onsubmit = function(){ return false; }; 

  var url=obj.url.value.trim();
  if(url.match(/^\s*$/g) ){alert("请输入新备忘！");obj.url.focus();return;}
  var list=document.getElementById("list");
  var chkbox=document.createElement("input");
  chkbox.type="checkbox";
  chkbox.onclick=function(){clickchk(obj);}
  chkbox.value=url;
  chkbox.name="url_chkbox";
  var hr=document.createElement("hr");
  hr.size="0";hr.style.borderTop="1px solid gray";
  var txt=document.createTextNode(url);  
  var div=document.createElement("div");
  div.appendChild(chkbox);
  div.appendChild(txt);
  div.style.borderBottom="1px dashed gray";
  div.style.padding="10px";
  div.onmouseover=function(){
   showDelete(this);
  }
  div.onmouseout=function(){
   hideDelete(this);
  }
  
//开始添加元素;
  list.appendChild(div);
//结束添加元素;
return false;
}

function del(list,obj){
//删除list的内容
  var candel=false;
  var i=list.childNodes.length;
  var end = -1;
   while(  i > end ){  //如果存在child
     var  s=list.childNodes[i];
     if(typeof(s)!="undefined"  && s.tagName){
         try{ //如果child的类型不为空;
                var tgname = s.tagName.toUpperCase();
                if(tgname != "DIV" || s.childNodes.length <=0 )return;
                //子集是div且还有子集
                var s1 = s.childNodes[0];
                if( s1.type.toLowerCase() =="checkbox" && s1.checked==true ){
                //如果该子集里的checkbox选中,那么删除改子集(div);
                 candel = true;        
                 list.removeChild(s);
               }            
          }catch(ex){      
         }
       }
        
      i--;
   }
  
isDisabledButton();
     
}
function isDisabledButton(){
  var objform=document.sitelist;
  var list=$("list");

 var hasDivChild = false;
 if(list.childNodes.length>0 ){
     for(var i=0;i<list.childNodes.length;i++){
        var s=list.childNodes[i];
        if( typeof(s)!="undefined"  && s.tagName) {
            if(s.tagName.toUpperCase()=="DIV")
            hasDivChild = true;
        }
     }
 }
  objform.check.disabled= hasDivChild?false:true;
  objform.recheck.disabled= hasDivChild?false:true;
  objform.check.value=strAll;
  objform.remove.disabled= hasDivChild?false:true; 
}

function delSingle(objparent,objdel,objchild){
       objparent.removeChild(objchild);
       objdel.style.display="none";
//
   isDisabledButton();
  
}

function editSingle(objparent,objedit,objchild){
     

     function makeLink(text , tag){
         var temobj = document.createElement(tag);
         temobj.style.marginLeft="5px"; temobj.style.marginRight="5px";
         temobj.style.textDecoration="underline";temobj.style.cursor="pointer";
         temobj.appendChild( document.createTextNode(text) );

          return temobj;     
     }
     try{
     var secondChild = objchild.childNodes[1];
     var url = secondChild;
     var urlStr =  url.nodeValue ;//? url.nodeValue : url.toString() ;
     if(urlStr==null || urlStr.trim=="")return;

     var editorPanel = document.createElement("span");
     objchild.removeChild(url);
     var editor = document.createElement("input");
     editor.type="text";
     var maxLen = 50;
     var thisLen = parseInt( countLength(urlStr) );
     editor.size =  maxLen > thisLen ? thisLen : maxLen;
     editor.value = urlStr;
     editor.select();
     editor.onmouseover=function(){this.select();}

     var update =  makeLink("更新","font");update.title="更新";
     update.onclick=function(){
        var newvalue = editor.value;
        objchild.childNodes[0].value = newvalue;
        objchild.removeChild(objchild.childNodes[1]);
        objchild.appendChild(document.createTextNode(newvalue));
     }
     var cancle =  makeLink("取消","font");cancle.title="取消";
     cancle.onclick=function(){
        objchild.removeChild(objchild.childNodes[1]);
        objchild.appendChild(url);
     }

     //添加到编辑面板;
     editorPanel.style.fontSize="13px";
     editorPanel.style.color="blue";
     editorPanel.style.textDecoration="none";
     editorPanel.appendChild(editor);
     editorPanel.appendChild(update);
     editorPanel.appendChild(document.createTextNode("|"));
     editorPanel.appendChild(cancle);
     //添加对象的子元素;
     objchild.appendChild(editorPanel);
   }catch(ex){
      alert(ex.toString());
   }finally{
      //
   }
}



var currentDiv;
function showDelete(self){
  self.style.backgroundColor = overCol;
 currentDiv = self;
 var theid = "del_icon";
 if(!$(theid)){
     var delDiv=document.createElement("div");
     delDiv.id=theid;
     var d=delDiv;
     d.style.textAlign="center";d.style.fontSize="13px";
     var edit = document.createElement("span");
     edit.title="修改备忘";edit.style.textDecoration="none";
     edit.onclick=function(){
         editSingle(currentDiv.parentNode,this.parentNode,currentDiv);
     }
     
     
     var clock = document.createElement("span");
     clock.title="设置闹钟定时提醒";clock.style.textDecoration="none";
     clock.onclick=function(){
         clockSingle(currentDiv.parentNode,this.parentNode,currentDiv);
     }

     var del =  document.createElement("span");
     del.title="删除此备忘";del.style.textDecoration="none";
     del.onclick=function(){
         delSingle(currentDiv.parentNode,this.parentNode,currentDiv);
     }
     
     
     
     edit.appendChild(document.createTextNode("修改"));
     d.appendChild(edit);
     d.appendChild(document.createTextNode(" | "));
     clock.appendChild(document.createTextNode("闹钟"));
     d.appendChild(clock);
     d.appendChild(document.createTextNode(" | "));
     del.appendChild(document.createTextNode("删除"));
     d.appendChild(del);

     d.style.width="180px";
     d.style.lineHeight="30px";
     d.style.color="blue";
     document.body.appendChild(d);
     $(theid).onmouseover=function(){
      currentDiv.style.backgroundColor = overCol;
      this.style.display="";
     }

     //
     $(theid).style.cursor="pointer";
 }
 if($(theid)){
   $(theid).style.display="";
   var l= getAbsoluteLeft(self) + self.offsetWidth - 150;
   var t= getAbsoluteTop(self) + 5;
   var scrollT = self.parentNode.scrollTop;//减去出现滚动条的高度;
   var t= getAbsoluteTop(self) + 5 - scrollT;
getAbsoluteTop(self) +"|"+ self.offsetWidth +"|"+  self.offsetHeight + "t:"+t + "l:"+l;
   $(theid).style.position="absolute";
   $(theid).style.left = l+"px";
   $(theid).style.top = t+"px";
 }
}

function hideDelete(self){
 var theid = "del_icon";
  if( $(theid) ){
   self.style.backgroundColor = self.childNodes[0].checked?checkedCol:emptyCol;
   $(theid).style.display="none";
  }
}