/*
* jQuery CascadingSelect AddOption
*
* Author: qinfei
*
* Licensed like jQuery, see http://docs.jquery.com/License
*
* 作者：qinfei
*/
yg_Ratings.Msgs = new Array
(
  "很差啦(0分)",
  "及格啦(2分)",
  "一般啦(3分)",
  "比较好(4分)",
  "棒极了(5分)"
);
yg_Ratings.Labels = new Array
(
  "1 Star",
  "2 Stars",
  "3 Stars",
  "4 Stars",
  "5 Stars"
);
// Path for all images.
//var path = "http://us.i1.yimg.com/us.yimg.com/i/us/ls/gr/";
//var path = "http://us.i1.yimg.com/us.yimg.com/i/us/sh/karma/yri_";
var path = "star/1/";
yg_Ratings.starbar = "star_";
// Image for set units.
yg_Ratings.UnitY = "yellow.gif";
// Image for set units <= the mouse over point.
yg_Ratings.UnitYMouseOver = "yellow.gif";
// Image for set units > the mouse over point.
yg_Ratings.UnitYMouseLess = "grey.gif";
// Image for unset units.
yg_Ratings.UnitN = "white.gif";
// Image for unset units <= the mouse over point.
yg_Ratings.UnitNMouseOver = "hover.gif";
yg_Ratings.DefaultMsg = " ";
function yg_Ratings(id, button, inputname, defaultval,type)
{
  // The id parameter is the name (a string) of the variable to which the
  // instance is assigned. (The variable is sent along to event handlers,
  // so it must be in the global scope.)
  var i, t;
  var attributes;
  var h1, h2;
  var d = document;
  var style;  
  this.starbar = type + "_";
  this.rating = 0;
  this.showbutton = button;
  if (defaultval < 1 || defaultval > 5) {
defaultval = 0;
  }
  this.rating = defaultval;
  
  attributes = 'class="ygrtngs" id="' + id + '" style="' + style + '"';
  h1 = 'onMouseOut="return yg_Ratings_mouseOut(' + id + ');"';
  d.write('<span ' + attributes + ' ' + h1 + '>');
  /*if (defaultval > 0 && type == "star") {
      d.write('<div class="msg" id="'+id+'_msg">'+yg_Ratings.Msgs[defaultval-1]+'</div>');
  } else {
      d.write('<div class="msg" id="'+id+'_msg" style=\"display:none\">'+yg_Ratings.DefaultMsg+'</div>');
  }*/
  if (this.showbutton) { 
      d.write('<span><strong>Rate it:</strong></span>');
  }
  for (i = 1; i <= yg_Ratings.Msgs.length; i++)
  {
      h1 = 'onMouseOver="return yg_Ratings_mouseOver(' + id + ', ' + i + ');"';
	  h2 = 'onClick="return yg_Ratings_click(' + id + ', ' + i + ',\''+id+'\');"';
      d.write('<span class="unit "' + h1 + ' ' + h2 + '>');
      if (i <= defaultval) {
        d.write('<img src="' + path + this.starbar + yg_Ratings.UnitY + '" />');
      } else {
        d.write('<img src="' + path + this.starbar + yg_Ratings.UnitN + '" />');
      }
      d.write('</span>');
  }
  //显示分数
  if (defaultval > -1 && type == "star") {
      //d.write('<span class="msg" id="'+id+'_msg">'+yg_Ratings.Msgs[defaultval-1]+'</span>');
	  d.write('<span class="msg" id="'+id+'_msg">必须打分喔</span>');
  } else {
      d.write('<div class="msg" id="'+id+'_msg" style=\"display:none\">'+yg_Ratings.DefaultMsg+'</div>');
  }
  //显示分数结束
  if(defaultval){
d.write('<input type="hidden" name="'+inputname+'" id="input_'+id+'" value="' + defaultval + '" />');
  } else {
d.write('<input type="hidden" name="'+inputname+'" id="input_'+id+'" />');    
  }
  this.input = document.getElementById('input_'+id);
  d.write('</span>');

  this.parent = document.getElementById(id);
  this.images = this.parent.getElementsByTagName("img");
  this.msg = document.getElementById(id + '_msg');
  this.id = id;
  var children = this.msg.childNodes;
  var node;
  for (var i = 0; i <  children.length; i++)
  {
      node = children[i];
      if (node.nodeType == 3)
      {
            this.DefaultMsg = node.nodeValue;
      }
  } 
}
function yg_Ratings_set(n, oflag)
{
  if (arguments.length < 2)
      oflag = true;
  
  this.rating = n;
  this.DefaultMsg = yg_Ratings.Msgs[n-1];
//  if (this.showbutton) {
    this.showBtn("btnSave");
//  }
  this.update(n, oflag);
}
function yls_Ratings_showSubmit(sBtn) {
    var saveButton = document.getElementById(sBtn);
    if(saveButton != null) {
        saveButton.style.display="block";
    }
}
function yg_Ratings_setMsg(m)
{
  var children = this.msg.childNodes;
  var node;
  for (var i = 0; i < children.length; i++)
  {
      node = children[i];
      if (node.nodeType == 3)
      {
        // Using 0xA0 prevents the browser from collapsing empty messages.
            node.nodeValue = m;
      }
  }
}
function yg_Ratings_get()
{
  return this.rating;
}
function yg_Ratings_update(n, oflag)
{
  // The oflag parameter is true when the mouse is outside of the ratings
  // component. The n parameter is the 
  if (this.starbar == 'star_') {
    if (oflag) {
    this.setMsg(this.DefaultMsg);
    } else {
    this.setMsg(yg_Ratings.Msgs[n - 1]);
    }
  }
  if (n == this.rating) {
      this.input.setAttribute("value", n);
  }
  for (i = 1; i <= yg_Ratings.Msgs.length; i++)
  {
      if (oflag)
      {
        if (i <= this.rating)
            this.images[i - 1].src = path + this.starbar + yg_Ratings.UnitY;
        else
            this.images[i - 1].src = path + this.starbar + yg_Ratings.UnitN;
      }
      else
      {
        if (i <= n)
        {
            if (i <= this.rating)
              this.images[i - 1].src = path + this.starbar + yg_Ratings.UnitYMouseOver;
            else
              this.images[i - 1].src = path + this.starbar + yg_Ratings.UnitNMouseOver;
        }
        else
        {
            if (i <= this.rating)
              this.images[i - 1].src = path + this.starbar + yg_Ratings.UnitYMouseLess;
            else
              this.images[i - 1].src = path + this.starbar + yg_Ratings.UnitN;
        }
      }
  }
  return true;
}
function yg_Ratings_click(obj, n,id)
{
  obj.set(n, false);
  //alert(id+","+n);
  document.getElementById(id).value=n;
  return true;
}
function yg_Ratings_mouseOver(obj, n)
{
  obj.update(n, false);
  return true;
}
function yg_Ratings_mouseOut(obj)
{
  obj.update(0, true);
  return true;
}
yg_Ratings.prototype.set = yg_Ratings_set;
yg_Ratings.prototype.setMsg = yg_Ratings_setMsg;
yg_Ratings.prototype.get = yg_Ratings_get;
yg_Ratings.prototype.update = yg_Ratings_update;
yg_Ratings.prototype.showBtn = yls_Ratings_showSubmit;